OH MY do I remember them...also Yellow and Plaid stamps. The grocery stores, gas stations and even some smaller department type stores gave them. There were even coupons in the paper to get extra/double/ etc with certain purchases or on your whole order. We saved them, traded them and drooled over the catalogs lol. I got things for my babies, my house, and sometimes even presents. It was so much fun. My oldest daughter has the china and crystal I got with green stamps and I still have a few items in my house that I purchased with them. FUN TIMES and memories!