If you own a Mobile Auto Detailing and Mobile Car Washing Company and are looking to increase your customer base and get some solid customers to help your business you may wish to consider washing for Used Car Dealers and Rental Sales Lots. But the mobile car-cleaning entrepreneur is also advised to pick and choose their customers quickly and thus learn a little bit about the industry of used cars and rental cars first.Used car dealers have had some tough times in the past, and many of these can go out of business or string you out for payment, but the Rent-A-Car Company used lots are backed by a big corporation which means your chances of not being paid for work completed are very low. Also many times these dealers will be a lead into detailing of cars to be sold and also for washing at airport lots and main Rent-A-Car lots.All you need is to get your foot in the door. Some of the Rent-A-Car companies with the most pre-owned car dealership lots are Thrifty, Budget, Hertz, National, Enterprise, and Rent-A-Wreck. Some have large one or two-day sales events to get rid of a lot of cars at one time while maintaining year round lots. Some of these dealership divisions cater to credit unions and others do self-financing. All these strategies are employed periodically to maximize sales.A Mobile Auto Detailing and Mobile Car Washing Entrepreneur should be looking at these markets as long-term markets and as they expand their market penetration and their businesses get bigger they can introduce seal coats, reconditioning and other detailing add-ons. Consider this in 2006.