Making sure your car is as spick and span as the day it followed you home is important for maintaining man/machine friendship, which, if left unmaintained, can lead to a heartbreak and engine failure. Solidify your bond with today's Groupon: for $75 you get a full auto detailing from Crash Course LLC (a $150 value) in Owasso. Boasting a 6,000-square-foot state-of-the-art facility, Crash Course details automobiles large and small while de-griming their sleek outsides and cushy insides. Local owners Scott and Holly DeMaro have vast knowledge and an appreciation for automobiles, ensuring customers that Crash Course’s team of experts stop at nothing, even in the name of love, to offer top-notch car care. Each full interior cleaning tidies seats (leather is cleaned and conditioned, fabric is shampooed), floors, and nooks where French fries and bottle caps congregate for support meetings. After the windows, engine compartment, tires, and wheels are rid of the neighbor’s smashed patio furniture bits, the exterior of the car receives a three-stage buff and wax to remove tiny scratches and swirls. After a thorough detailing, Betty the Buick and Kermit the Ford will emerge as shiny and clean as the day their owners renamed them in a knighting ceremony.