In the world of loyalty marketing, trading stamps are ground zero. From the early 1800s with Sweet Home Laundry soap to Ovaltine’s Captain Midnight in the 1950s, these “collect and save” programs awarded coupons or stamps that products’ fans could accumulate and redeem for goodies. Another wildly popular program was operated by the Sperry & Hutchinson Co., issuer of S&H green stamps, which opened its first redemption center in 1897. As the first third-party provider of trading stamps for companies including dry goods stores, gas stations and supermarkets, S&H let consumers fill books of stamps and redeem them for household products and personal items. Betty Crocker also offered a popular and long-running coupon program, which launched in 1929 and finally gave away its last reward before closing shop at the end of 2006.