I do still tip 20% when using breakfast vouchers at the restaurant (when club is closed)

I do not tip in clubs in the states for clearing plates.

I do tip when not in the states, such as Mexico - where they pour your coffee & are willing to answer questions or offer suggestions for restaurants or things to do/see. I have had the attendants make me bloody marys or mamossa's (sp) for breakfast gratis. $5/table went a long way there!

I do tip the club attendant for taking the time to print off my boarding passes for me, suggest a few restaurants, make a reservation etc. Recently the gentlemen in the club spent about 40m of his time assisting us with restaurant suggestions, even calling several restaurants to make a reservation, then printed off directions for us. I gave him $10.