Most DC hotels ding you $30-$50 per day for parking but have in/out privileges. You usually can do it for less than 1/2 of that by noting what lot the hotel uses and driving there yourself but usually no in/out (leave your car at the hotel checking in spot as you observe). Otherwise find a cheap lot close by lot yourself. I never use the DC, NYC, SF etc valet or self park hotel lots.

MisterNice