Having overseen a bellstaff at a resort, one thing that drove me nuts was people accepting an optional service and not tipping for it. We did bell service and free optional valet. If you don't want to tip, park yourself and get your own bags. If you would rather have help, tip. Granted, we paid our staff well above minimum wage too. It was amazing how well tips motivated what turned out to be the best employees. Usually if I was training someone, I could pull in an average of $10 a guest.