The restaurant waiter/waitress
- Self-serve/Buffet restaurant - 10-12%. If the service was fantastic, you could up this to 15%.
- Local restaurant - 15%. Again, you could up this by a few percent if the server worked particularly hard or went out of their way to help you.
- A 4-star restaurant - recommend a tip of around 20-22%. Don’t forget to tip the wine steward (a few dollars per bottle of wine) and/or the coat check attendant ($1 for a couple of coats).
Taxi driver
Unless you want to annoy the Travis Bickle-esque taxi driver by stiffing him on a tip you’d better go ahead and give 15% of the fare.
Hair salon
An acceptable amount is somewhere in the region of 10-15% of the cost.
Hotel staff
- Chambermaid - $5 per night you stay. That is, if you want clean sheets, towels and plenty of toilet roll.
- Room service waiter - Again this is the standard 15%.
- Bellhop - Tip them around $10-15 for their efforts.
The casino
- Blackjack dealer - $5 chip (or more) per session. It’s also common place in casinos for the players to place a small side bet for the dealers.
- Craps dealer - Those craps dealers love the action as much as you. It’s common to place up to a 10% side bet for the dealer.
- Poker dealer - $5 per session. Winners usually tip at least $10 and sometimes as much as 10% on bigger wins.
- Drink waitresses - $1 chip per drink.
Parking attendant
You should tip, at the very least $1 ($5 if they help with your luggage) but I would tip a little extra to get a better level of service.

via bspcn.com