Allston Car Wash is just like it says, 'a spa for your cah,' it does cost around 20 buck to get a good wash 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 think their best deal is 'the works' which includes an exterior wash,
a foam protectant, a clear coat sealer, and undercarriage wash, a rust inhibitor, wheel brightner and air freshener. They have a deal going on right now so this only costs 21 dollars, but your car will look shiny and new. It's a good thing to do every other month or so.