Remember trading stamps? We’d receive them at the checkout counters of some supermarkets and gas stations, mount them in collector’s books, then redeem them for products. Contemporary customer loyalty programs offer cash-back coupons, members-only sales, rewards points, and punch cards … buy 10, get the 11th one free. Think back … have you ever redeemed trading stamps, rewards points, or a punch card freebie? Share your Retail Rewards stories forward.