I grew up on a dairy farm and, believe it or not, our cow feed supplier gave out green stamps. The redemption store was about a half hour away from where I grew up in a town that we always went to get groceries, so mom would just drop me off at the store. As a kid, I got my first baseball glove (that wasn't a hand-me-down) from the S&H Green Stamp store. I played centerfield the whole time I was growing up, but I played it wearing a first-baseman's mit. Why? Because that was the only glove that the S&H Green Stamp store had in inventory the day that I went it to get the glove.
It was a good quality glove and I still have it.
I haven't seen any S&H retailers for years.