Tires, like Little League players and the merchandise at a globe depot, should be regularly rotated. Pull the old unbolt and switch with today's Groupon: for $39, you get a wheel alignment and tire rotation at Capitol Auto Service in Waipahu (a $79.95 value).

Capitol Auto Service's ASE-certified technicians refurbish pony-powered clunkers into smooth steering machines with a line of repair and routine maintenance services performed on all makes and models. A wheel alignment maximizes tire life by adjusting the angles of each spoked cylinder so they run perpendicular to the ground, parallel to each other, and away from hitchhiking nails. Wheel whizzes counteract heavy front-tire wear by swapping the forward duo with their back brethren during a brief tire rotation, preventing uneven braking and poor handling in inclement weather. Patrons can wait out the 45- to 60-minute service in the air-conditioned waiting room while gazing at the big-screen television, sipping complimentary beverages, and using the free WiFi to look up their vehicles' daily horoscopes.