Document:

<PAGE>   1
                                                                  EXHIBIT 10.12

                      SECOND AMENDMENT TO CREDIT AGREEMENT

     THIS SECOND AMENDMENT TO CREDIT AGREEMENT (this "Second Amendment"), dated
as of December 31, 1999, is entered into among LLS Corp., an Illinois
corporation (the "Borrower"), the entities listed on the signature pages hereto
as Lenders (collectively, the "Lenders"), Credit Suisse First Boston, as
Syndication Agent (in said capacity, the "Syndication Agent"), Bankers Trust
Company, as Documentation agent (in said capacity, the "Documentation Agent"),
and Bank of America, N.A., as Administrative Agent (in said capacity, the
"Administrative Agent").

                                   BACKGROUND

     The Borrower, the Lenders, the Syndication Agent, the Documentation Agent
and the Administrative Agent are parties to that certain Credit Agreement,
dated as of July 30, 1999, as amended by that certain First Amendment to Credit
Agreement, dated as of September 15, 1999 (said Credit Agreement, as amended,
the "Credit Agreement"; the terms defined in the Credit Agreement and not
otherwise defined herein shall be used herein as defined in the Credit
Agreement).

     The Borrower, the Lenders, the Syndication Agent, the Documentation Agent
and the Administrative Agent desire to amend the Credit Agreement to account
for the fact that the Borrower will not change its fiscal year as contemplated
at the closing of the Credit Agreement.

     NOW, THEREFORE, in consideration of the covenants, conditions and
agreements hereafter set forth, and for other good and valuable consideration,
the receipt and adequacy of which are all hereby acknowledged, the Borrower,
the Lenders, the Syndication Agent, the Documentation Agent and the
Administrative Agent covenant and agree as follows:

     1.   AMENDMENTS TO CREDIT AGREEMENT.

     (a)  Clause (iii) of Section 2.5(b) is hereby amended to read as follows:

          "(iii) Prepayments from Excess Cash Flow. Commencing on January 15,
     2001 and on each January 15 thereafter, the Borrower shall prepay Facility
     A Term Loan Advances and Facility B Term Loan Advances in an aggregate
     principal amount equal to the lesser of (i) 70% of Excess Cash Flow, if
     any, for the fiscal year ending immediately preceding each such January 15
     or (ii) an amount, if any, which would result (on a pro forma basis) in the
     Leverage Ratio being less than 3.50 to 1 after such prepayment. Each such
     prepayment shall be applied as provided in Section 2.5(c) hereof."

     (b)  Section 5.4 of the Credit Agreement is hereby amended to read as
follows:
<PAGE>   2
          "Section 5.4  Accounting Methods and Financial Records. The Borrower
     shall, and shall cause each Subsidiary to, maintain a system of accounting
     established and administered in accordance with GAAP, keep adequate records
     and books of account in which complete entries will be made and all
     transactions reflected in accordance with sound business practices, and
     keep accurate and complete records of its respective assets. The Borrower
     and each of its Subsidiaries shall maintain a fiscal year ending on the
     last day of September."

          (c)  Section 6.2(c) of the Credit Agreement is hereby amended to read
     as follows:

          "(c) As soon as available, but in any event within (i) 120 days
     following the end of fiscal year 1999 and (ii) 90 days following the end of
     each other fiscal year, a copy of the annual consolidated operating budget
     of the Borrower for such current fiscal year."

     2. REPRESENTATIONS AND WARRANTIES TRUE; NO EVENT OF DEFAULT. By its
execution and delivery hereof, the Borrower represents and warrants that, as of
the date hereof and after giving effect to the amendments contemplated by the
foregoing Section 1:

     (a) the representations and warranties contained in the Credit Agreement
and the other Loan Documents (other than those representations and warranties
that specifically relate to an earlier date) are true and correct in all
material respects on and as of the date hereof as if made on and as of such
date;

     (b) no event has occurred and is continuing which constitutes a Default or
an Event of Default;

     (c) the Borrower has full power and authority to execute and deliver this
Second Amendment and the Credit Agreement, as amended hereby, the execution,
delivery and performance of this Second Amendment and the Credit Agreement, as
amended hereby, has been duly authorized by all corporate action of the
Borrower, and this Second Amendment and the Credit Agreement, as amended
hereby, constitute the legal, valid and binding obligations of the Borrower,
enforceable in accordance with their respective terms, except as enforceability
may be limited by applicable Debtor Relief Laws and by general principles of
equity (regardless of whether enforcement is sought in a proceeding in equity
or at law) and except as rights to indemnity may be limited by federal or state
securities laws;

     (d) neither the execution, delivery and performance of this Second
Amendment or the Credit Agreement, as amended hereby, nor the consummation of
any transactions contemplated herein or therein, will contravene or conflict
with any law, rule or regulation to which any Obligor is subject, or any
indenture, agreement or other instrument to which any Obligor or any of their
respective property is subject; and

                                      -2-
<PAGE>   3
     (e)  no authorization, approval, consent, or other action by, notice to, or
filing with, any governmental authority or other Person (including the Board of
Directors of the Borrower or any Guarantor), is required for the (i) execution,
delivery or performance by the Borrower of this Second Amendment and the Credit
Agreement, as amended hereby, or (ii) acknowledgment of this Second Amendment
by each Guarantor.

     3.   CONDITIONS OF EFFECTIVENESS. This Second Amendment shall be effective
as of December 31, 1999, subject to the following:

     (a)  the Administrative Agent shall have received counterparts of this
Second Amendment executed by the Lenders comprising the Determining Lenders;

     (b)  the Administrative Agent shall have received counterparts of this
Second Amendment executed by the Borrower and acknowledged by each Guarantor;

     (c)  the representations and warranties set forth in Section 2 of this
Second Amendment shall be true and correct; and

     (d)  the Administrative Agent shall have received, in form and substance
satisfactory to the Administrative Agent and its counsel, such other documents,
certificates and instruments as Administrative Agent shall reasonably require.

     4.   REFERENCE TO THE CREDIT AGREEMENT.

     (a)  Upon the effectiveness of this Second Amendment, each reference in
the Credit Agreement to "this Agreement", "hereunder", or words of like import
shall mean and be a reference to the Credit Agreement as amended by this Second
Amendment.

     (b)  The Credit Agreement, as amended by this Second Amendment, and all
other Loan Documents shall remain in full force and effect and are hereby
ratified and confirmed.

     5.   GUARANTOR'S ACKNOWLEDGMENT. By signing below, each of the
Guarantors (a) acknowledges, consents and agrees to the execution, delivery and
performance by the Borrower of this Second Amendment, and (b) acknowledges and
agrees that its obligations in respect of its Subsidiary Guaranty or any other
Loan Documents executed by it are (i) not released, diminished, waived,
modified, impaired or affected in any manner by this Second Amendment, (ii)
hereby ratified and confirmed and (iii) not subject to any claims, offsets,
defenses or counterclaims.

     6.   COSTS AND EXPENSES. The Borrower agrees to pay on demand all costs
and expenses of the Administrative Agent in connection with the preparation,
reproduction, execution and delivery of this Second Amendment and the other
instruments and documents to be delivered hereunder (including the reasonable
fees and out-of-pocket expenses of counsel for the

                                      -3-
<PAGE>   4
Administrative Agent with respect thereto and with respect to advising the
Administrative Agent as to its rights and responsibilities under the Credit
Agreement, as amended by this Second Amendment).

     7.   EXECUTION IN COUNTERPARTS. This Second Amendment may be executed in
any number of counterparts and by different parties hereto in separate
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which taken together shall constitute but one and the
same instrument.

     8.   GOVERNING LAW; BINDING EFFECT. This Second Amendment shall be
governed by and construed in accordance with the laws of the State of New York
and shall be binding upon the Borrower, the Syndication Agent, the
Documentation Agent, the Administrative Agent and each Lender and their
respective successors and assigns.

     9.   HEADINGS. Section headings in this Second Amendment are included
herein for convenience of reference only and shall not constitute a part of
this Second Amendment for any other purpose.

     10.  ENTIRE AGREEMENT. THE CREDIT AGREEMENT, AS AMENDED BY THIS SECOND
AMENDMENT, AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN
THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS,
OR SUBSEQUENT ORAL AGREEMENTS BETWEEN THE PARTIES.

                   REMAINDER OF PAGE LEFT INTENTIONALLY BLANK

                                      -4-
<PAGE>   5
        IN WITNESS WHEREOF, the parties hereto have executed this Second
Amendment as the date first above written.

                                    LLS CORP.

                                    By: /s/ WESLEY D. DEHAVEN
                                        ----------------------------------------
                                        Wesley D. DeHaven
                                        Vice President of Finance

                                    BANK OF AMERICA, N.A., as Administrative
                                    Agent and as a Lender

                                    By: /s/ W. THOMAS BARNETT
                                        ----------------------------------------
                                        W. Thomas Barnett
                                        Managing Director

                                    100 North Tryon Street
                                    NC1-007-13-06
                                    Charlotte, North Carolina 28255

                                    BANKERS TRUST COMPANY, as Documentation
                                    Agent and as a Lender

                                    By: /s/ SUSAN L. LEFEVRE
                                        ----------------------------------------
                                        Name: Susan L. LeFevre
                                        Title: Director

                                    COMERICA BANK

                                    By: /s/ GREGORY N. BLOCK
                                        ----------------------------------------
                                        Name: Gregory N. Block
                                        Title: Vice President

                                    SUMMIT BANK

                                    By: /s/ TIMOTHY E. DOYLE
                                        ----------------------------------------
                                        Name: Timothy E. Doyle
                                        Title: VP/Director

                                    U.S. BANK NATIONAL ASSOCIATION BANK

                                    By: /s/ EILEEN ROETHLER
                                        ----------------------------------------
                                        Name: Eileen Roethler
                                        Title: AVP

                                      -5-
<PAGE>   6
                                           THE NORTHERN TRUST COMPANY

                                           By: /s/ CHRISTOPHER J. COURNS
                                               -----------------------------
                                               Name:  Christopher J. Courns
                                               Title: Vice President

                                           DRESDNER BANK AG, NEW YORK AND
                                           GRAND CAYMAN BRANCHES

                                           By: /s/ THOMAS R. BRADY
                                               -----------------------------
                                               Name:  Thomas R. Brady
                                               Title: Vice President

                                           By: /s/ JOHN R. MORRISON
                                               -----------------------------
                                               Name:  John R. Morrison
                                               Title: Vice President

                                           BANK AUSTRAI CREDITANSTALT
                                           CORPORATE FINANCE, INC.

                                           By: /s/ STEPHEN W. HIPP
                                               -----------------------------
                                               Name:  Stephen W. Hipp
                                               Title: Senior Associate

                                           By: /s/ RICHARD W. VARALLA
                                               -----------------------------
                                               Name:  Richard W. Varalla
                                               Title: Senior Associate

                                           BANK OF TOKYO-MITSUBISHI TRUST
                                           COMPANY

                                           By: /s/ NICHOLAS J. CAMPBELL
                                               -----------------------------
                                               Name:  Nicholas J. Campbell
                                               Title: Vice President

                                      -6-
<PAGE>   7
                                     BANK UNITED

                                     By: /s/ PHIL GREEN
                                         ---------------------------------------
                                         Name: Phil Green
                                         Title: Director Commercial Syndications

                                     BANK ONE, NA
                                     Main Office Chicago

                                     By: /s/ CHRISTINA JAMIESON
                                         ---------------------------------------
                                         Name: Christina Jamieson
                                         Title: Senior Vice President

                                     WELLS FARGO BANK, N.A.

                                     By: /s/ REGINALD M. GOLDSMITH, III
                                         ---------------------------------------
                                         Name: Reginald M. Goldsmith, III
                                         Title: Vice President

                                     MORGAN STANLEY DEAN WITTER PRIME
                                     INCOME TRUST

                                     By: /s/ PETER GEWIRTZ
                                         ---------------------------------------
                                         Name: Peter Gewirtz
                                         Title: Vice President

                                     SENIOR DEBT PORTFOLIO

                                     By: Boston Management and Research,
                                         as Investment Advisor

                                     By: /s/ PAYSON F. SWAFFIELD
                                         ---------------------------------------
                                         Name: Payson F. Swaffield
                                         Title: Vice President

                                     EATON VANCE INSTITUTIONAL SENIOR LOAN FUND
                                     By: Eaton Vance Management
                                         as investment advisor

                                     By: /s/ PAYSON F. SWAFFIELD
                                         ---------------------------------------
                                         Name: Payson F. Swaffield
                                         Title: Vice President

                                      -7-
<PAGE>   8
                                    BANK POLSKA KASA OPIEKI S.A.

                                    By: /s/ HARVEY WINTER
                                        ----------------------------------------
                                        Name: Harvey Winter
                                        Title: Vice President

                                    NATEXIS BANQUE BFCE

                                    By: /s/ GARY KANIA
                                        ----------------------------------------
                                        Name: Gary Kania
                                        Title: Vice President

                                    By: /s/ EVAN S. KRAUS
                                        ----------------------------------------
                                        Name: Evan S. Kraus
                                        Title: Assistant Vice President

ACKNOWLEDGED AND AGREED:

COURTESY CORPORATION

By: /s/ ILLEGIBLE
    ----------------------------------------
    Name:
    Title:

CREATIVE PACKAGING CORP.

By: /s/ ILLEGIBLE
    ----------------------------------------
    Name:
    Title:

COURTESY SALES CORP.

By: /s/ ILLEGIBLE
    ----------------------------------------
    Name:
    Title:

                                      -8-<PAGE>   1
                                                                  EXHIBIT 10.13

                      THIRD AMENDMENT TO CREDIT AGREEMENT

     THIS THIRD AMENDMENT TO CREDIT AGREEMENT (this "Third Amendment"), dated
as of September 8, 2000, is entered into among LLS Corp., an Illinois
corporation (the "Borrower"), the entities listed on the signature pages hereto
as Lenders (collectively, the "Lenders"), Credit Suisse First Boston, as
Syndication Agent (in said capacity, the "Syndication Agent"), Bankers Trust
Company, as Documentation Agent (in said capacity, the "Documentation Agent"),
and Bank of America, N.A., as Administrative Agent (in said capacity, the
"Administrative Agent").

                                   BACKGROUND

     The Borrower, the Lenders, the Syndication Agent, the Documentation Agent
and the Administrative Agent are parties to that certain Credit Agreement,
dated as of July 30, 1999, as amended by that certain First Amendment to Credit
Agreement, dated as of September 15, 1999, and that certain Second Amendment to
Credit Agreement, dated as of December 31, 1999 (said Credit Agreement, as
amended, the "Credit Agreement"; the terms defined in the Credit Agreement and
not otherwise defined herein shall be used herein as defined in the Credit
Agreement).

     The Borrower, the Lenders, the Syndication Agent, the Documentation Agent
and the Administrative Agent desire to amend the Credit Agreement.

     NOW, THEREFORE, in consideration of the covenants, conditions and
agreements hereafter set forth, and for other good and valuable consideration,
the receipt and adequacy of which are all hereby acknowledged, the Borrower,
the Lenders, the Syndication Agent, the Documentation Agent and the
Administrative Agent covenant and agree as follows:

     1.   AMENDMENTS TO CREDIT AGREEMENT.

     (1)  The definition of "Applicable Base Rate Margin" set forth in Section
1.1 of the Credit Agreement is hereby amended to read as follows:

          "Applicable Base Rate Margin" means the following per annum
     percentages applicable in the following situations:
<PAGE>   2
<TABLE>
<CAPTION>
                                                     Facility A Term
                                                      Loan Advances     Facility B
                                                      and Revolving     Term Loan
                   Applicability                        Advances         Advances
                   -------------                     ---------------    ----------
<S>                                                  <C>                <C>
     (a)  The Leverage Ratio is greater than               1.50            2.00
            or equal to 5.00 to 1

     (b)  The Leverage Ratio is greater than or            1.25            1.75
            equal to 4.50 to 1 but less than
            5.00 to 1

     (c)  The Leverage Ratio is greater than or            1.00            1.50
            equal to 4.00 to 1 but less than
            4.50 to 1

     (d)  The Leverage Ratio is greater than or            0.75            1.25
            equal to 3.50 to 1 but less than
            4.00 to 1

     (e)  The Leverage Ratio is less than 3.50 to 1        0.50            1.25
</TABLE>

     The Applicable Base Rate Margin payable by the Borrower on the Base Rate
     Advances outstanding hereunder shall be adjusted on each Adjustment Date
     as tested by using the Leverage Ratio set forth in the Compliance
     Certificate received on each such Adjustment Date. If the financial
     statements required pursuant to Section 6.1 or 6.2 hereof, as applicable,
     and the related Compliance Certificate are not received by the
     Administrative Agent by the date required, the Applicable Base Rate
     Margin shall be determined as if the Leverage Ratio is greater than or
     equal to 5.00 to 1 until such time as such financial statements and
     Compliance Certificate are received. Notwithstanding the foregoing, the
     Applicable Base Rate Margin from and after September 8, 2000 until and
     including the Adjustment Date determined following the date of receipt of
     the financial statements for the fiscal year ending September 30, 2000 and
     the related Compliance Certificate shall be determined as if the Leverage
     Ratio is greater than or equal to 5.00 to 1.

          (2) The definition of "Applicable LIBOR Rate Margin" set forth in
Section 1.1 of the Credit Agreement is hereby amended to read as follows:

               "Applicable LIBOR Rate Margin" means the following per annum
          percentages, applicable in the following situations:
<PAGE>   3

<TABLE>
<CAPTION>
                                                      Facility A Term
                                                       Loan Advances     Facility B
                                                       and Revolving     Term Loan
                   Applicability                         Advances         Advances
                   -------------                      ---------------    ----------
<S>                                                   <C>                <C>
     (a)  The Leverage Ratio is greater than or             2.75            3.25
            equal to 5.00 to 1

     (b)  The Leverage Ratio is greater than or             2.50            3.00
            equal to 4.50 to 1 but less than 5.0
            to 1

     (c)  The Leverage Ratio is greater than or             2.25            2.75
            equal to 4.00 to 1 but less than
            4.50 to 1

     (d)  The Leverage Ratio is greater than or             2.00            2.50
            equal to 3.50 to 1 but less than
            4.00 to 1

     (e)  The Leverage Ratio is less than 3.50 to 1         1.75            2.50

</TABLE>

     The Applicable LIBOR Rate Margin payable by the Borrower on the LIBOR
     Advances outstanding hereunder shall be adjusted on each Adjustment Date as
     tested by using the Leverage Ratio set forth in the Compliance Certificate
     received on each such Adjustment Date. If the financial statements required
     pursuant to Section 6.1 or 6.2 hereof, as applicable, and the related
     Compliance Certificate are not received by the Administrative Agent by the
     date required, the Applicable LIBOR Rate Margin shall be determined as if
     the Leverage Ratio is greater than or equal to 5.00 to 1 until such time as
     such financial statements and Compliance Certificate are received.
     Notwithstanding the foregoing, the Applicable LIBOR Rate Margin from and
     after September 8, 2000 until and including the Adjustment Date determined
     following the date of receipt of the financial statements for the fiscal
     quarter ending September 30, 2000 and the related Compliance Certificate
     shall be determined as if the Leverage Ratio is greater than or equal to
     5.00 to 1.

     (3)  The definition of "EBITDA" set forth in Section 1.1 of the Credit
Agreement is hereby amended to read as follows:

          "EBITDA" means, for any period, the sum of (without duplication) the
     following: (a) Pretax Net Income (excluding therefrom, to the extent
     included in determining Pretax Net Income, any items of extraordinary gain,
     including net gains on the sale of assets other than asset sales in the
     ordinary course of business, and adding thereto, to the extent included in
     determining Pretax Net Income, any items of extraordinary loss, including
     net losses on the sale of assets other than asset sales in the ordinary
     course of business), plus (b) to the extent included in determining Pretax
     Net Income, interest and dividend expense, whether paid in cash or in kind
     (including the amortization or write-off of debt discount and issuance
     costs and commissions and discounts and other fees and charges associated
     with Indebtedness), plus (c) to the extent included in determining Pretax
     Net Income, depreciation and amortization (including but not limited to,
     goodwill and organizational costs and any write-offs of purchased
     technology), plus (d) to the extent included in determining Pretax Net
     Income, other non-cash charges, minus (e) for any period prior to the
     Agreement Date included in the calculations of EBITDA, interest and
     investment income, minus (f) to the extent included in determining Pretax
     Net Income, other non-cash

                                      -3-
<PAGE>   4
credits, minus (g) cash payments made with respect to non-cash charges added
back in determining EBITDA in any prior period which would otherwise be
excluded in determining EBITDA, plus (h) to the extent included in determining
Pretax Net Income, one-time transaction expenses incurred in connection with
the Courtesy Recapitalization which are not capitalized or amortized pursuant
to GAAP, plus (i) to the extent included in determining Net Income, charges
related to pre-operating costs and start-up costs (for a period not to exceed
12 months after the purchase or opening of any facility) with respect to
facilities purchased or otherwise opened by the Borrower or its Subsidiaries
(excluding the 800 Buffalo Grove facility for such time only as the proviso
immediately succeeding clause (j) below is in effect) not to exceed $4,000,000
per facility, plus (j) for each fiscal quarter prior to September 30, 1999, to
the extent included in determining Net Income, the aggregate amount of
compensation of officers of the Borrower and its Subsidiaries in excess of such
amounts provided in the employment agreements entered into in connection with
the Courtesy Recapitalization; provided, further, there shall be added to
EBITDA, to the extent included in determining Net Income and without
duplication of any costs referred to in clause (i) above, actual start-up costs
related to the Schering Plough contract for the 800 Buffalo Grove facility
through and including March 31, 2001 not to exceed in aggregate amount (i)
$4,400,000 for the four fiscal quarter period ending September 30, 2000, (ii)
$6,000,000 for the four fiscal quarter period ending December 31, 2000, (iii)
$6,000,000 for the four fiscal quarter period ending March 31, 2001, (iv)
$4,500,000 for the four fiscal quarter period ending June 30, 2001, (v)
$3,000,000 for the four fiscal quarter period ending September 30, 2001, and
(vi) $1,500,000 for the four fiscal quarter period ending December 31, 2001.

(4)  Section 7.8 of the Credit Agreement is hereby amended to read as follows:

     Section 7.8 Leverage Ratio. The Borrower shall not permit the Leverage
Ratio to be greater than (a) 5.95 to 1 at the end of any fiscal quarter
occurring during the period from and including September 30, 2000 through and
including June 30, 2001, (b) 5.50 to 1 at the end of any fiscal quarter
occurring during the period from and including September 30, 2001 through and
including June 30, 2002, (c) 4.50 to 1 at the end of any fiscal quarter
occurring during the period from and including September 30, 2002 through and
including June 30, 2003, (d) 4.00 to 1 at the end of any fiscal quarter
occurring during the period from and including September 30, 2003 through and
including June 30, 2004, and (e) 3.50 to 1 at September 30, 2004 and at the end
of any fiscal quarter thereafter.

(5)  Section 7.9 of the Credit Agreement is hereby amended to read as follows:

     Section 7.9 Interest Coverage Ratio. The Borrower shall not permit the
Interest Coverage Ratio to be less than (a) 1.55 to 1 at the end of any fiscal
quarter occurring during the period from and including September 30, 2000
through and including June 30, 2001, (b) 1.70 to 1 at the end of any fiscal
quarter occurring during the period from and including September 30, 2001
through and including June 30, 2002, (c) 2.25 to 1 at the

                                      -4-
<PAGE>   5
        end of any fiscal quarter occurring during the period from and including
        September 30, 2002 through and including June 30, 2003, and (d) 2.50 to
        1 at September 30, 2003 and at the end of any fiscal quarter thereafter.

        (6) The Compliance Certificate is hereby amended to be in the form of
Exhibit E to this Third Amendment.

        2. REPRESENTATIONS AND WARRANTIES TRUE; NO EVENT OF DEFAULT. By its
execution and delivery hereof, the Borrower represents and warrants that, as of
the date hereof and after giving effect to the amendments contemplated by the
foregoing Section 1:

        (1) the representations and warranties contained in the Credit Agreement
and the other Loan Documents (other than those representations and warranties
that specifically relate to an earlier date) are true and correct in all
material respects on and as of the date hereof as if made on and as of such
date;

        (2) no event has occurred and is continuing which constitutes a Default
or an Event of Default;

        (3) the Borrower has full power and authority to execute and deliver
this Third Amendment and the Credit Agreement, as amended hereby, the execution,
delivery and performance of this Third Amendment and the Credit Agreement, as
amended hereby, has been duly authorized by all corporate action of the
Borrower, and this Third Amendment and the Credit Agreement, as amended hereby,
constitute the legal, valid and binding obligations of the Borrower, enforceable
in accordance with their respective terms, except as enforceability may be
limited by applicable Debtor Relief Laws and by general principles of equity
(regardless of whether enforcement is sought in a proceeding in equity or at
law) and except as rights to indemnity may be limited by federal or state
securities laws;

        (4) neither the execution, delivery and performance of this Third
Amendment or the Credit Agreement, as amended hereby, nor the consummation of
any transactions contemplated herein or therein, will contravene or conflict
with any law, rule or regulation to which any Obligor is subject, or any
indenture, agreement or other instrument to which any Obligor or any of their
respective property is subject; and

        (5) no authorization, approval, consent, or other action by, notice to,
or filing with, any governmental authority or other Person (including the Board
of Directors of the Borrower or any Guarantor), is required for the (i)
execution, delivery or performance by the Borrower of this Third Amendment and
the Credit Agreement, as amended hereby, or (ii) acknowledgment of this Third
Amendment by each Guarantor.

        3. CONDITIONS OF EFFECTIVENESS. This Third Amendment shall be effective
as of September 8, 2000, subject to the following:

                                      -5-
<PAGE>   6
     (1)  the Administrative Agent shall have received counterparts of this
Third Amendment executed by the Lenders comprising the Determining Lenders;

     (2)  the Administrative Agent shall have received counterparts of this
Third Amendment executed by the Borrower and acknowledged by each Guarantor;

     (3)  the representations and warranties set forth in Section 2 of this
Third Amendment shall be true and correct; and

     (4)  the Administrative Agent shall have received, in form and substance
satisfactory to the Administrative Agent and its counsel, such other documents,
certificates and instruments as Administrative Agent shall reasonably require.

     4.   AMENDMENT FEE. Provided this Third Amendment becomes effective, the
Borrower covenants and agrees to pay an amendment fee to the Administrative
Agent on behalf of the Lenders which execute and deliver this Third Amendment
to the Administrative Agent (or its counsel) not later than 5:00 p.m., Dallas
time, September 7, 2000 in an amount equal to the product of (a) 0.175%
multiplied by (b)(i) with respect to each Lender having a portion of the
Revolving Credit Commitment, an amount equal to such Lender's portion of the
Revolving Credit Commitment and (ii) with respect to each Lender which is owed
Facility A Term Loan Advances or Facility B Term Loan Advances, the aggregate
principal amount of Facility A Term Loan Advances and Facility B Term Loan
Advances owed to such Lender on the date of this Third Amendment. Such
amendment fee shall be paid in immediately available funds and shall be due and
payable to each Lender eligible for payment pursuant to the preceding sentence
no later than two Business Days after the date which this Third Amendment
becomes effective. The Borrower agrees that the failure to pay the amendment
fee provided in this Section 4 shall be an Event of Default under Section
8.1(b)(ii) of the Credit Agreement.

     5.   REFERENCE TO THE CREDIT AGREEMENT.

     (1)  Upon the effectiveness of this Third Amendment, each reference in the
Credit Agreement to "this Agreement", "hereunder", or words of like import
shall mean and be a reference to the Credit Agreement as amended by this Third
Amendment.

     (2)  The Credit Agreement, as amended by this Third Amendment, and all
other Loan Documents shall remain in full force and effect and are hereby
ratified and confirmed.

     6.   GUARANTOR'S ACKNOWLEDGEMENT. By signing below, each of the Guarantors
(a) acknowledges, consents and agrees to the execution, delivery and
performance by the Borrower of this Third Amendment, and (b) acknowledges and
agrees that its obligations in respect of its Subsidiary Guaranty or any other
Loan Documents executed by it are (i) not released, diminished, waived,
modified, impaired or affected in any manner by this Third

                                      -6-
<PAGE>   7
Amendment, (ii) hereby ratified and confirmed and (iii) not subject to any
claims, offsets, defenses or counterclaims.

        7. COSTS AND EXPENSES. The Borrower agrees to pay on demand all costs
and expenses of the Administrative Agent in connection with the preparation,
reproduction, execution and delivery of this Third Amendment and the other
instruments and documents to be delivered hereunder (including the reasonable
fees and out-of-pocket expenses of counsel for the Administrative Agent with
respect thereto and with respect to advising the Administrative Agent as to its
rights and responsibilities under the Credit Agreement, as amended by this Third
Amendment).

        8. EXECUTION IN COUNTERPARTS. This Third Amendment may be executed in
any number of counterpart and by different parties hereto in separate
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which taken together shall constitute but one and the
same instrument.

        9. GOVERNING LAW; BINDING EFFECT. This Third Amendment shall be governed
by and construed in accordance with the laws of the State of New York and shall
be binding upon the Borrower, each Guarantor, the Syndication Agent, the
Documentation Agent, the Administrative Agent and each Lender and their
respective successors and assigns.

        10. HEADINGS. Section headings in this Third Amendment are included
herein for convenience of reference only and shall not constitute a part of this
Third Amendment for any other purpose.

        11. ENTIRE AGREEMENT. THE CREDIT AGREEMENT, AS AMENDED BY THIS THIRD
AMENDMENT, AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN
THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS,
OR SUBSEQUENT ORAL AGREEMENTS BETWEEN THE PARTIES.

                   REMAINDER OF PAGE LEFT INTENTIONALLY BLANK

                                      -7-
<PAGE>   8
          IN WITNESS WHEREOF, the parties hereto have executed this Third
Amendment as the date first above written.

                              LLS CORP.

                              By: /s/ WESLEY D. DEHAVEN
                                 -------------------------------------
                                 Wesley D. DeHaven
                                 Vice President of Finance

                              BANK OF AMERICA, N.A., as Administrative
                              Agent and as a Lender

                              By: /s/ ROBERT A. KLAWINSKI
                                 -------------------------------------
                                 Robert A. Klawinski
                                 Managing Director

                              100 North Tryon Street
                              NC1-007-13-06
                              Charlotte, North Carolina 28255

                              CREDIT SUISSE FIRST BOSTON, as Syndication
                              Agent and as a Lender

                              By: /s/ BILL O'DALY
                                 -------------------------------------
                                 Bill O'Daly
                                 Vice President

                              By: /s/ LAURA ADVAN
                                 -------------------------------------
                                 Laura Advan
                                 Assistant Vice President

                              BANKERS TRUST COMPANY, as Documentation
                              Agent and as a Lender

                              By: /s/ SCOTTYE D. LINDSEY
                                 -------------------------------------
                                 Scottye D. Lindsey
                                 Vice President

                              COMERICA BANK

                              By: /s/ JAMES B. HAEFFNER
                                 -------------------------------------
                                 James B. Haeffner
                                 First Vice President

                              SUMMIT BANK

                              By: /s/ TIM DOYLE
                                 -------------------------------------
                                 Tim Doyle
                                 Senior Vice President

                                      -8-
<PAGE>   9
                                   U.S. BANK NATIONAL ASSOCIATION

                                   By: /s/ ILLEGIBLE
                                       ---------------------------------
                                       Name:  Illegible
                                       Title: Vice President

                                   THE NORTHERN TRUST COMPANY

                                   By: /s/ BRIAN D. BEITZ
                                       ---------------------------------
                                       Name:  Brian D. Beitz
                                       Title: Vice President

                                   DRESDNER BANK AG, NEW YORK AND
                                   GRAND CAYMAN BRANCHES

                                   By:
                                       ---------------------------------
                                       Name:
                                       Title:

                                   By:
                                       ---------------------------------
                                       Name:
                                       Title:

                                   BANK AUSTRIA CREDITANSTALT
                                   CORPORATE FINANCE, INC.

                                   By: /s/ ILLEGIBLE
                                       ---------------------------------
                                       Name:  Illegible
                                       Title: Senior Vice President

                                   By: /s/ GARY ANDERSEN
                                       ---------------------------------
                                       Name:  Gary Andersen
                                       Title: Vice President

                                      -9-
<PAGE>   10
                                           BANK OF TOKYO-MITSUBISHI TRUST
                                           COMPANY

                                           By:
                                               ------------------------------
                                               Name:
                                                     ------------------------
                                               Title:
                                                      -----------------------

                                           BANK UNITED

                                           By: /s/ PHIL GREEN
                                               ------------------------------
                                               Name: Phil Green
                                               Title: Director Commercial
                                                      Syndications

                                           BANK ONE, NA

                                           By:
                                               ------------------------------
                                               Name:
                                                     ------------------------
                                               Title:
                                                      -----------------------

                                           WELLS FARGO BANK, N.A.

                                           By: /s/ REGINALD M. GOLDSMITH, III
                                               ------------------------------
                                               Name: Reginald M. Goldsmith, III
                                               Title: Vice President

                                           MORGAN STANLEY DEAN WITTER PRIME
                                           INCOME TRUST

                                           By: /s/ PETER GEWIRTZ
                                               ------------------------------
                                               Name: Peter Gewirtz
                                               Title: Vice President

                                           VAN KAMPEN SENIOR FLOATING RATE
                                           FUND

                                           By: /s/ DARVIN D. PIERCE
                                               ------------------------------
                                               Name: Darvin D. Pierce
                                               Title: Vice President

                                           SENIOR DEBT PORTFOLIO

                                           By: Boston Management and Research,
                                               as Investment Advisor

                                           By: /s/ PAYSON F. SWAFFIELD
                                               -------------------------------
                                               Name: Payson F. Swaffield
                                               Title: Vice President

                                      -10-
<PAGE>   11
                                    EATON VANCE INSTITUTIONAL SENIOR
                                    LOAN FUND

                                    By: Eaton Vance Management, as Investment
                                        Advisor

                                    By: /s/ PAYSON F. SWAFFIELD
                                        ----------------------------------------
                                        Payson F. Swaffield
                                        Vice President

                                    By:
                                        ----------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                              ----------------------------------

                                    BANK POLSKA KASA OPIEKI S.A.

                                    By: /s/ HARVEY WINTER
                                        ----------------------------------------
                                        Name: Harvey Winter
                                        Title: Vice President

                                    NATEXIS BANQUES POPULAIRES

                                    By: /s/ GARY KANIA
                                        ----------------------------------------
                                        Name: Gary Kania
                                        Title: Vice President

                                    By: /s/ FRANK H. MADDEN
                                        ----------------------------------------
                                        Name: Frank H. Madden
                                        Title: Vice President & Group Manager

ACKNOWLEDGED AND AGREED:

COURTESY CORPORATION

By: /s/ WESLEY D. DEHAVEN
    ----------------------------------------
    Name: Wesley D. DeHaven
    Title: VP Finance

CREATIVE PACKAGING CORP.

By: /s/ WESLEY D. DEHAVEN
    ----------------------------------------
    Name: Wesley D. DeHaven
    Title: VP Finance

COURTESY SALES CORP.

By: /s/ WESLEY D. DEHAVEN
    ----------------------------------------
    Name: Wesley D. DeHaven
    Title: VP Finance

                                      -11-

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