The invention of the horseless carriage revolutionized transportation and forced horses to settle for jobs as professional carousel riders. Keep cars running and horses standing with today's Groupon: for $29, you get an oil change (a $32.50 value), a tire rotation (a $20 value), and a battery check (a $10 value) at Briarwood Auto Service (a $62.50 total value).

A certified NAPA AutoCare Center, Briarwood Auto Service keeps vehicles rolling smoothly with full-service oil changes. Experienced automobile wizards will swap out used and abused motor oil for up to 5 quarts of standard car sauce, then lube the chassis and check all fluids for proper levels. Rotating the tires ensures they'll wear down evenly, and testing the battery checks to see whether cars have enough juice to wake up whenever drivers have somewhere to go. During the service, which takes 30–60 minutes to complete, Briarwood's mechanics not only provide steel steeds with a top-notch tune-up but also can teach customers how to maintain a healthy car, avoid unnecessary repairs, and persuade oil sheiks to share their extra barrels of crude.