There's something fun about using a pressure washer. Its like having a high powered squirt gun except you use it to clean things with. Save money by washing your own car, boat, even your home but make sure you get the right tool for the job.
Pressure washers are rated in psi. or pounds per square inch and the biggest problem for people who go out and buy them is they do not get one with enough power. You can go to the department store and buy a 1000 to 1700 psi washer for around a hundred bucks and you will not have enough working pressure to wash your car with, which is what most people buy them for. By the same token you can get one that is so powerful that it will take the paint right off whatever it is you're cleaning, and most of the cheaper ones are not adjustable, so be sure you either get one at the pressure you need or find one that lets you dial in the pressure to suit the job. A minimum of 2800 psi is needed for washing most cars.
You can get a pressure washer in almost any configuration you want. There are gasoline driven pressure washers and electric motor driven ones. The more expensive ones even have oil or propane fired heaters that let you wash with hot water which is ideal for making an engine look brand new, and the top of the line ones can even put out steam.
Beside washing your car and saving money on all those coin operated car washes, you can blast off that dirty driveway, clean the outside of your house, make short work of clearing out your gutters, and cleaning patio furniture and around swimming pools is a breeze with a pressure washer. You can even start your own business by getting a pressure washer and mounting it on a utility trailer along with a generator and water tank.