#8 Potbelly

Yes Potbelly exists in other cities, but none that I have ever lived in so its going in my DC list. For those unaware, Potbelly is a sandwich shop whose signature is toasting their sandwiches and for their hot peppers. They are amazing and I, and all others that have taste, am basically always in the mood for one. The best part, they're only $4. They recently came out with the "BIG" which has 30% more awesomeness. As my friend Sara put it, the worst thing about Potbelly is the last bite.