According to Newton's Fourth Law, the more you drive your car, the more debris it attracts—repelling aerodynamics, the opposite gender, and gravity itself. Smooth your horseless carriage's exterior with today's Groupon: for $10, you get two platinum car washes (a $20 value) at Auto Spa Express Wash, located on Knudsen Drive.

Having metamorphosed from a coin-operated self-serve facility into a full-service automated carwashery, Auto Spa Express Wash offers sullied wheelmobiles a filth-absolving retreat. The conveyorized wash boasts Lammscloth technology, using super-soft materials that simulate a delicate hand wash. Auto Spa's signature platinum wash ($10) includes an undercarriage cleansing that splashes water onto a car's underbelly, releasing performance-reducing soot and construction horses. Also included is a clear-coat protectant that shields cars from paint-deteriorating chemicals and a waxing that supplies a polished shine. Click here to see a list of everything included with the platinum wash.