Like golden retrievers, cars are reluctant to bathe, but if you don't wrestle them into the water, they might repel potential houseguests and track mud on your sofa. Scrub man's best four-wheeled friend with today's Groupon: for $25, you get a $50 reusable wash card at ProClean Auto Wash. This deal is valid at the six ProClean locations listed in the sidebar.

ProClean Auto Wash pampers automotive exteriors with convenient facilities for blasting bugs off of windshields and scraping grime off of grills. Swing in for an automatic wash ($7) to declog your car's fiberglass pores, leaving it more radiant than a burning pile of flashlights. Cars who measure adoration in elbow grease will savor an affectionate hand wash of their delicate curves at ProClean Auto Wash's self-serve stations ($3 for first five minutes). Use a pressure washer to blast away filth and dirt until you're able to see your reflection and, like in every Disney movie, you find out who you really are.