The only thing I've taken from this thread is... Whoa, you can BUY cornbread in the US? Like, actual bread, and not just the ingredients? Otherwise, you just need some time to figure out the shops and the packaging. Most stuff is here.. somewhere. A lot of shops have stuff either hidden, available on order, or just labeled in their language/stocked in a section that doesn't make sense (to me). Ex: the pot scrubbers and garbage bags are in the pet food aisle, not with cleaning stuff in our supermarket. Japanese rice is in with health foods.. not with the other rice. Miso is in the exotic import section, tofu is on shelves, not in the fridges.. veggie mock meat stuff is in the frozen meat dept. Oh, and the 'help' desk doesn't seem to be about helping people find stuff...
Our local butcher sells a lot of fresh herbs and vegetables, but they're all in the back. The convenience store can get almost anything you'd like, but you have to ask.
The cracker situation is dire here, though.