Neglected cars try to escape their owners by parking in tow zones or running away from their garages to join the demolition derby. Keep custody of your car with today's Groupon: for $20, you get two Gold car washes at Sonic Soft Car Wash, valid at its locations in Woodbridge and Falls Church (a $52 value).

Voted Best Car Wash in 2010 and 2011 by Northern Virginia Magazine, the chassis shiners at Sonic Soft Car Wash deliver a host of gleam-enhancing services at both their Woodbridge and Falls Church drive-thrus. Though services differ slightly by location, both car washes see exteriors washed, floors and seats vacuumed, and windows wiped clean of finger- and bologna-prints, plus a suite of finish-protecting treatments, such as a wheel brite and a tire shine. A Vision Clear rain repellent helps keep a truck impermeable, and a Teflon clear-coat wax brings out a vehicle's shine. Meanwhile, the three-color ultraviolet protection polish staves off the unsightly blisters and embarrassing bikini lines cars develop in heavy sunshine.

Though Sonic Soft Car Wash sometimes features a discounted price online, this Groupon still offers the best deal available.