I remember them well. Not only did I stick them in the book for my Mom, but as a young bride I collected them too. I got our first vacuum with them. I also got a "silver" tray. I don't know why I thought I needed a silver tray at that point in my life, but I still have it.
I also remember dishes packed in laundry detergent. I collected the whole set. I also remember books being sold in the supermarket> I collected all of the Womans Day cookbooks. They are set up like encyclopedias. Still use them too. This must mean I am ancient. lol
Just read the post suggesting quilt stamps, several LQS have punch cards that when they are filled, you get a discount.