Cars—unlike ears, iron lungs, and gerbil aquariums—require occasional cleanings. Unsully your petrol steed's most precious parts with today's Groupon: for $50, you get $100 worth of auto cleaning services at Klean-A-Kar on East Main Street. Since 1955, before cars had even been invented, Klean-A-Kar has scrubbed, buffed, and shined the exteriors, interiors, and subterranean tunnels of the dirtiest mobiles, preventing rust and corrosion for a smooth ride. Purge dirt and other roadway roughage with Klean-A-Kar's wash services, which include exterior and full-service offerings (available with the No. 1 full service wash for $19.95), or tidy up with its detailing options (interior and exterior detailing services start at $99.95). Upon redemption, Groupon users will trade in their vouchers for a reusable gift card.