Help your Accounting Department stay organized by using Accounts Payable Jackets! These envelopes are a great way to keep all paperwork like invoices, receipts and statements together. Use different colors to color code each Month, Year, Department, Status or any category that would work best for your Automotive Dealership. Accounts Payable Jackets help save time in your Accounting Department by having information on the front of the envelope. AP-1900 jackets are 12” x 9” with a 32 lb paper stock. .