Guide to tipping in Las Vegas

Bartenders $1 per round for parties of two to four
Bellmen $2-$5
Cocktail waitresses $1 per round for parties of two to four
Dealers $1 to start, increase with your luck
Maids $1 per day
Restaurant waiters 15-20 percent
Room service waiters 15-20 percent
Showroom servers $5-$10 cocktail-only shows, $10-$20 dinner show
(Depending on service)
Shuttle drivers 15 percent of fare
Taxicab 15 percent of fare
Valet parking $1-$2 upon return for your car