Save space in your wallet & organize all your gift & store rebate cards by putting a hole punch through them and adding them to a key ring. There are also "frequent user" card wallets available if the key ring is too much.
34 Ingenious Ways To De-Clutter Your Entire Life/ Or simplify it to this one question: If I were shopping right now, would I buy this? If the answer is no, out it goes. This would work really well in my cluttered garage!