My husband and I will be traveling to Paris for a week in September. We will be on a very, very tight budget and probably will plan on just one nice lunch. We will be staying on Rue Cadet in the 9th, and I'd appreciate suggestions on how to eat well with almost no money. Would love to hear suggestions for bakeries, markets, cheese shops, ethnic eats, creperies, street food, etc. as well as the best place for a nice, budget friendly lunch and where to buy wine.