If your shady parking spot rests beneath bird-filled trees or someone scrawled carpetbagger into the inch of dirt on your car window, Quick Quack Car Wash can give your vehicle its original off-the-lot shine. With today's Groupon, you'll get five Best Washes for $20 (a $40 value). This Groupon isn't just great for sprucing up your own car: it also makes the perfect passive-aggressive gift for your dirty carpool driver.

For the comfort of cranky, elderly cars or their impatient, teenage equivalents, Quick Quack Car Wash features a conveyor system, keeping the wash time no longer than three minutes. During this temporal microcosm, the spinning wheel of clean caresses the finish of your fine automobile with soft cloth buffers, soaping and scrubbing off dirt without using harmful chemicals or abrasives. The car moves along the all-glass tunnel to get rinsed, before it's blasted with warm air and a coating of Rain-X surface protection. The Best Wash includes a vehicular pedicure, sprucing the tires up with tire shine.

A clean car guarantee means that if the car's cleanliness isn't up to your particular standards after its wash, the professional computers will re-wash your chariot. Environmentally minded customers can put their brains' worry cells on standby—Houston’s Quick Quack features its own water-reclamation system.