Cars require occasional cleanings, unlike dirt collections or Teflon pants. Add shine to your auto with today's Groupon: for $36, you get three diamond wash car washes (an $18 value each), plus interior vacuuming and window cleaning (an $8 value each), at Drive & Shine (a $78 total value). This Groupon is valid at the locations in Elkhart, Mishawaka, Schererville, and South Bend.

Drive & Shine's lengthy wash tunnel scrubs muck and mire from auto frames with eco-friendly soaps and nimble-fingered soft foam wraps. During the 10- to 15-minute service, an underbody wash cleanses the car's road-facing parts, and autos beam like a smiling hologram after being lovingly smothered in applications of clear-coat sealant and foam polish. A layer of Diamond Wax projects the radiant luster of the finish far into the future, and Wheel Brite and tire dressing keep the vehicle's rubber boots looking spick-and-span. To keep the interior looking sharp, technicians climb inside to vacuum dirt, debris, and crumbs from the rugs and seats, beat particles out of mats, scrub windows, and wipe dashes and door jambs with soapy foam wraps. Ten percent of Drive & Shine's proceeds will be donated to United Way, an organization that promotes healthy living and helps humans reach their full potential.