Readers' Choice: Potbelly Sandwich Works, Various locations
There might be cheaper sandwiches out there, but we doubt you'll find anything better than the variety at Which Wich, the ubiquitous shop created by Genghis Grill founder Jeff Sinelli. For $4.33, you get to play Dagwood Bumstead, building your own masterwork from the bread up--and the fresh baked bread here actually tastes like bread, not that fluffy Wonder Bread-like stuff at a certain other sandwich chain. Forget about the side soup or salad, though. These guys are specialists (they even make their own chips), and you can tell that from the results: a tangy muffaletta, salty pastrami, rich roast beef. If it fits between two slices of bread, they have it.