For about $18 you can get your car hand washed and interior cleaned and vacuumed. They do an excellent job and the lines aren’t long, except after rainy days. The great thing about this is that it’s on a very accessible area of town and convenient to highways and the GWB, for those of you who wish to wash your car before or after work.
They have discounted rates on Thursdays or Tuesdays, though I can’t remember when, you should check before you go. And if you’re a bit short on cash, there’s a Citibank conveniently located next door.