Keep the box: Your rebate may require an original proof of purchase or barcode from one or all items included in the rebate. Often times your submission will not be processed without the original proof of purchase or barcode included with your submission.
Make copies: Make copies of your receipts, rebate forms, barcodes or proofs of purchase, and anything else you send in for your rebate. This information may be necessary for reprocessing lost paperwork, or for confirming the status of your submission with the rebate processor.
Check your postmark: Your rebate may have specific requirements for when it must be postmarked by. All rebates will have an effective end date but many may also require a submission within 30 days of purchase. Missing this deadline will prevent you from processing your rebate.