ProntoWash Miami, Miami

Yellow and blue signage near the parking lots of shopping malls, offices, and entertainment centers indicates the presence of ProntoWash Eco AutoSpa, a car wash and detailing powerhouse that boasts more than 350 operations worldwide. Its business model revolves around accessibility—ProntoWash sets up shop where cars already are, saving drivers time and preserving all the gas and corn dogs that engines would have otherwise consumed during a trip to a traditional car wash. Helming special yellow Washing Karts, the company's technicians use biodegradable detergent and about a pint of low-pressure water to render each car clean. They also care for cars by vacuuming carpets, restoring headlights, stuffing multivitamins inside ailing glove compartments, and making arrangements to hit the road with their mobile car-wash service.