There is so much to do in Washington, D.C. that you could spend weeks here, and not spend a dime except for meals, car, and lodging. Don't believe me? It may surprise you to learn that The Smithsonian is absolutely free, along with The White House tour, the U.S. Capital, the U.S. Supreme Court Building, and most national mouments.
Getting around: You're going to do a lot of walking, but you can minimize by planning ahead. Use the Metro routes to get around the city quickly, and then walk from there. You can also consider renting a vehicle, or sign up for Zipcar (available in D.C., and not an endorsement).
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