I honestly think Mark Fidrych might have had something to do with popularizing self-serve gas. I remember back in that magical year he had, there was a huge feature story on him in the Sunday Free Press, I think it was, and there was a picture of him happily pumping gas into his own car, and part of the story was how salt of the earth he was to want to have to do this for himself, like, look at this guy, this great big league pitcher, he's not putting on any airs. It looked so cool, at least to 15-year-old me.