I drive around town, windows down, with a "you owe me $20" face. It's the only way to cruise properly in an M3.
In the Yay Area, you're better off looking like a jerk. Plus, it gets all the fly honeys...
"A good reputation is more valuable than money"
2014 Porsche Cayenne Turbo S
1999 E36 M3 Dakar Yellow