What is standard tipping for Hotel Staff? (valet, bell person, etc.)

[Spoisal]

I know there is a link out there somewhere, but I can't find it .....what is standard tipping for the various hotel staff? I like to be prepared ahead of time

 

[cdrn1]

Not sure about the link but I usually tip valet $1-2 at both dropoff and pickup; bellman $1 a bag plus $1; wait staff 20-25%; housekeeping $1 pp.