If possible, obtain letters of support from members of the foundation or corporation to which you are applying. Make a rough draft of your application. Have it reviewed by several people for content, grammar, spelling, etc. Ask your DA to review it. Type or word-process neatly.
Hand deliver or mail the required number of copies on or before the funder's deadline.
If you mail the packet, use the type of postal or delivery service that requires someone has to sign for receipt of the package so that you know it was received. If you are not notified by the funder when the decisions will be made, call and ask the grants administrator. After you receive funding, follow the funders requests for follow-up reports and accounting procedures to the letter. You will greatly increase chances of receiving subsequent funding. Keep grant money in a separate bank account.