This building, at the entrance to Trenholm Park and now apparently a hair salon called Hair Works once housed a small independant convenience store. I am nearly sure it was called Campbell's, and I think it was the place to go for kids wanting a snack coming in or out of the park. It had all the standard soft drink, pork rind and motor oil options as well as magazines you wouldn't take home to mom, but there were no gas pumps.
I am guessing that it pre-dated the nearby Covenant Road Piggly Wiggly since otherwise it's hard to see what market it served, especially since (unless I'm recalling wrongly) it wasn't open particularly late at night. I imagine that the decline of kids coming and going unescorted as childhood as we knew it disappeared didn't help, but the final blow had to have been the opening of a chain store across the street (now a BP) with all the same stuff, chain purchasing power and gas pumps.