I also used to frequent Chicago Food Corp. Used to live down the street. Kimball ave just N of the Kennedy on the E side of road. If the little shop a few doors away is still open, (can't recall, but I think it's just north of there by a block or two on the E side of Kimball) they had a fine selection also, and was rarely as crowded.
Also, check for a Grand Mart Near you. They are popping up everywhere.
If you give a LOCATION, (Chicago is a big town) I bet you'd get more responses.
We cannot be friends if you do not know the difference between Mayo and Miracle Whip.