Put a folder in your filing cabinet to hold important receipts. There is nothing worse than having an item break while under warranty, but to then be unable to locate the receipt. This gives you an immediate place to put receipts after a purchase and a stress free way of locating them if needed.
*Tip - Sort through and clean out the folder once or twice a year to keep it organized and dependable. The less clutter there is, the less likely it is that something important will get lost.