The Washington Metropolitan Area Transit Authority, it’s rumored, keeps the Metro cleaner than any other public transportation in the country. I agree, yet, many people still don’t use the Metro often. When looking for places to live in the D.C. area make sure to take proximity to the Metro into consideration if you plan on saving money by using it often. In practice, this makes rents a little higher, but in the long run, using your car less saves money.
Park your car at a Metro lot and take the rail train into the city if you’re not close enough to walk to a station. This still saves you more money than if you were to drive (especially during the weekday). Parking garages in D.C. start at about $15 per day, if you’re lucky.
Use the Metro Trip Planner to figure out the quickest and cheapest way to get into the city.