I just buy that sort of stuff in bulk at Costco

I went in our Dollar General store, and the selection of what they did have was poor and not particularly well priced. Haven't been back myself. They did put some extra pressure on our one supermarket for those goods I suppose, seems to be their business model to an extent.
ps so that's a good example of nickel and diming right there, those we impose on ourselves by buying things in small retail quantities....