After reading these replies I relented and went to Wikipedia to read about Green Stamps...very interesting...The sign at the gas station near me, it was S&H Green Stamps! The Wikipedia piece had a photo with it.....interestingly, I thought the topics in my post were all rather disconnected, but the Wikipedia piece says that a company called "PAY BY TOUCH SOLUTIONS" purchased the  S & H last year.....Apparently green stamps still exist, but in the form of digital points.....interesting...