Tipping is a customary way of showing appreciation for services. One school of thought is that you should tip regardless of service quality, others feel that a tip is a direct reflection of good service, and must be earned.
Below are general tipping guidelines.
FOOD AND DRINK
Restaurant Check: 15-20% – Gratuity is usually included for groups of six or more.
Home Delivery: 10% – in bad weather 15%
Bartender: $1 per drink
Hotel Room Service: 15%
Take Out: No obligation. 10% for extra service or a large, complicated order.
Tipping Jars: No obligation. Tip if you are provided a little something extra or if you are a regular customer.
Skycap: $2 first bag, $1 per additional bag
Bellhop: $2 first bag, $1 per additional bag
Taxi driver: 15-20% of the fare
Doorman: $1-$4 for carrying luggage. $1-$2 for hailing cab.
Housekeeper: $2-$5 per day
Concierge: No obligation for answering questions. $5-10 for tickets or restaurant reservations. $15 for hard-to-get tickets or reservations.
Restroom Attendant: $1
Valet: $2-$5 when car is returned to you
Coat Check: $1-$2 per item