Skip the common fast-food restaurant and try the big, juicy and inexpensive burgers at Five Guys. Consistently named DC's best burgers, these beefy marvels require plenty of napkins. This ultra-casual eatery doesn't look like much, but the food makes up for it. Place your order at the counter, then munch on peanuts and listen to the blaring rock music while you wait. There are five locations in the metro area, including one 10 minutes south of downtown in Old Town Alexandria.