Allston Car Wash has the moniker 'a spa for your cah,' but it seems like an appropriate adage. It does cost a few bills, though. While you can go to 'do it yourself places' and pay very little (around 4 or 5 dollars) it will not do nearly as much for your car. I get 'the works' when I go, which includes an exterior wash, a foam protector, a clear coat sealer, and undercarriage wash, a rust inhibitor, wheel brightener and air freshener. I definitely recommend doing this every other month, your car will like you better.