My step dad sold mobile homes in the 60's. One time his "bonus" for selling an air conditioner with the trailer was green stamps. Boy we received a manilla envelope in the mail with HUGE sheets of stamps. We carefully torn them apart into the correct number for each page and took them into the store thinking we had a gold mine.
They wouldn't take them unless they were glued into a book so they gave us a case of the empty books and told us to come back when they were all glued in. ARRGGHHHH I remember it taking weeks to get them all in the books. When we went back in the sales person went through EVERY page of EVERY book to be sure we hadn't skipped any.
We got a new set of lawn furniture with that batch of them and many other things over that special promotion. Blahhhh now I taste them on my tongue..blah blah blah.... lol