I took my wifes minivan in for a wash and got the 20.99 deal and gave the guy 4 bucks..as i sat there watchign i saw peopel give a dollar or even spare change...so im wondering what you guys tip..i usually give them 3-5 bucks, but i expect a good job, usually they clean it up even more after i tip them they really seem to appreciate my tip so it got me to wondering what was a good tip