Like dogs and children, rowdy, mud-caked cars are best tackled by surprise with a hose and a coat of wax. Spring a cleaning on your car with today's Groupon to Monster Wash. Choose between the following options:

• For $25, you get an Express Interior Detail package, including an exterior wash (a $49.99 value).
• For $25, you get an Express Exterior Detail package (a $54.99 value).

Monster Wash's three auto bays house an elite touch-free car wash with a three-sided sudsy assault, undercarriage wash, and a wind-shearing drying system. The wash and wax combo may be found on the detailing menu, as can the Express Interior Detail, which includes a vacuum for carpets and seats, a scrubbing of the windows and dash, and a fumigation for mischievous gremlins. With the interior package, autonauts earn a free exterior touch-free wash to tackle caked-on insects and snow. The Express Exterior Detail clears grime and gunk from the chassis by hand and replaces it with a lustrous coat of wax and polish, leaving jalopies as fresh and shiny as a mouthwash-scented candle. Additionally, this package includes a tire shine and cleaning of the inside and outside of all windows.

Monster Wash utilizes a water-reclamation system to filter out harmful toxins and economize water use. Though not included with this Groupon, Monster Wash is equipped to de-scum anything from long-haul rigs to pintsize puppies to RV-towing bloodhounds.