Well, there's the grocery store. It has everything anyone could ever need, including things that rightfully shouldn't be there. I even found items that could only be from my world.

[His "world"... what an odd concept, still.]

And it seems to refill itself, too. I'm not sure how, I've never seen anyone restocking the shelves. It's... well, free, for now. You just use the blank card provided to you to pay for it. I don't doubt that we'll have to pay somehow sooner or later, though.