Applying new labels extends the usefulness of file folders and binders. Unused mailing labels work, but if you plan to buy labels, get those with gum instead of adhesive. Gum labels don't contaminate recyclable paper. Refurbish office equipment. Many agencies and business are reusing office furniture instead of buying new furniture.
Computers are also repairable.
Businesses that recondition and sell them are now flourishing. Use bulletin boards. Rather than routing memos, post information on bulletin boards or use computer networks for electronic mail. Change to cloth towel dispensers. Changing to modern cotton towel dispensers in place of paper towels reduces solid waste, makes for tidier restrooms and can save money.