Do you want a clean car, have $5, and can spare 10 minutes? If so, Wiki Wiki is the place for you. As little as $5 you can get a clean car, vacuums are included. On busy days, you can get in and out (minus vacuuming) under 10 minutes. If, however, the inside of your vehicle could use a little attention, the vacuums are plentiful and you can take as long as you like.
It's a short drive off I-77, near Costco on Tyvola. Can't beat the low cost and easy access for a shiny car.