Back in college, I worked one of my summers at a car wash. Best Car Wash SuppliesBest Car Wash Soap:Best Mitt:Best Exfoliator for Smooth Finish:Best Wax:Best Glass Cleaner:Best Interior Cleaner:Best for Shiny Wheels:Best Drying Cloths:The Expert: I’ve been an automotive journalist for the past 15 years, writing for Car and Driver and Hot Rod, and anytime I was taking photographs for a magazine article, I made sure to give the featured car the best wash of its life. By now, I believe I’ve hit upon the holy grail of car wash materials. You'll want a wash mitt that can transfer all those suds to the car, too. After all, assembling your own car wash kit saves money over the long term, as it’s far cheaper than going to the car wash time and again.