If you're like me, you have a lot of store reward cards. It was too much for my wallet so I went digital! I downloaded the Key Ring app free to my iPhone and it prompted me to scan in each card. Once done, there is then no need for the hard copy card!. Friends have also used the app CardStar, also free and very similar. At the store, pull up the bar code on your phone, and they simply scan it right from your screen! Isn't life easy with a smart phone?