How Much Do You Tip Your Stylist?

I just watched a rerun of Curb Your Enthusiasm, the one where Larry screws up the Christmas tipping beyond belief (did he tip the gardener more than the housekeeper? Tip the waiter at the club twice? I love this show).It got me thinking about my favorite tipping dilemma...the hairstylist. To begin: I'm a straight 25% cash tipper. I've been going to the same stylist for MANY years, she's the only