I Just Roll With It.
"The person who brings up the bags and opens the room for you should get $1 or $2, unless you have a whole trolley of luggage, when it should be more." - New York Times
Of course, you can always require three whole trolleys for your numerous and heavy boxes and shrug it off with, "I'd tip you but I'm all out of cash." I just keep it polite and hope that tomorrow is a better day.
Visit his blog at ChezBez