I had forgotten that I do have a recommendation since I actually received it as a gift. This works pretty much as advertised and is great if you live in an apartment or condo without easy access to water to wash your car with or if you are just wanting to conserve water.
http://www.rejuvenateauto.com/car-wash-waterless.php
http://www.rejuvenateauto.com/car-wash-waterless.php
