Tipping is especially important during the Christmas season. I always wait for the NBC Today Show that discusses the proper amount to tip. If I miss the show, I'll go back to last years' recommendations.
In favorite restaurants. Usual waiter double.. or 40%, Maitre'D... $50
Doorman- $200
Dog walker- One month's pay or $200
Barber/stylist - $100
Manicurist - $50
Psychiatrist- $300
Trainer - $100
Superintendent $300
Butler.... naw, just kidding... Don't have a butler.
Biggest problem I have with general restaurant tipping is the way some of our friends are so tight it's embarrassing. Even worse when they pick up some of the money I leave, and give it back to me, saying it's "too much". Aaaaarghh.