I'm kinda screwed then, my wife and I have to shop together, my autistic son mostly eats crackers, and unfortunately 2 boxes won't stretch out to him for a fortnight. Plus we buy a lot, it would be far too much for one person to manage on their own. I'll have to think of something then.
Do you HAVE to shop together though?
you could go more often? one of you go just before close when its less busy so you can be in and out quickly.