Room Service Tipping

I plan to do a lot of ordering from room service. What is the suggested amount of tip for the delivery person?

[Cheryl]

We usually tip $2 for our morning coffee...don't really use room service at other times

[Jim Bragg]

Usually a dollar if for sometime minor or small and a couple bucks if they bring sandwiches or something more. You tip at the time of service for this.
Jim

[cherdorsey]

I can tell you what i did about room service. I used 2 $ bills. this works very well for your luggage handlers also.

We always order room service at least twice a day, and usually tip $1 or $2 each time, and they don't really expect more than a buck.

[nushnakka]

When we order room service we usually order alot of stuff and it seems it's always a woman carrying this loaded and heavy tray so I would tip $3.