Washing a car, like performing taxidermy on a marlin, keeps it looking the way it did when it first came off the line. Preserve your greatest catch with today's Groupon: for $12, you get one month of unlimited washes at Time To Shine Car Wash (a $24 value). This Groupon can be redeemed at locations in Knoxville, Crossville, and Oak Ridge.

Time To Shine lathers up landcraft with an automated car wash tunnel that takes less than three minutes from start to finish. With a month of unlimited washes, give a vehicular exterior a serious scrubbing whenever the mood strikes, without the hassle of hooking up hoses or the expense of transforming three-piece flannel suits into cut-offs. A minuscule sensor, stuck discreetly to your windshield, registers each time you approach a Time To Shine drive-thru spray station and preps the high-tech equipment within for the proper procedures, including an underbody blast, high-pressure spray, tri-color foam conditioner, wheel clean, rain guard, rust inhibitor, and poly sealant. A spot-free rinse douses off the last of the biodegradable chemicals, flushing 80% of the liquids through a PurWater Reclaim recycling system; a high-powered air dry prevents cars from vigorously shaking off clingy droplets. Free vacuums line one side of each Time To Shine location so that customers can also evict interior litter.