Tipping -- always a loaded issue here for a variety reasons ranging from tightwaddness to cultural. In the US and Mexico, I tip bell staff, room service and housekeeping, also parking attendants and sometimes door staff when they are helpful. But not hotel reserved-access lounge staff; nor do I see others tip in same. I also tip the drivers of "free car service" including at my local garage. Concierge sometimes, often give flowers, chocolate, wine. Checkin staff never.

In Europe I am more selective in tipping.