Airport
The first opportunity to tip during travel is usually upon arriving at the airport or train station. Here are some tipping guidelines.
Porter or skycap	$2	Standard bag weight.
	$3+	Extra heavy bags.
	Add $2 optional	Curbside check-in.
	Add $5-$20	If you arrive late and are helped to your flight on time.
Electric Cart Driver	$2-$3/person
Wheelchair Pusher	None	Wheel you down the ramp from the gate to the plane (or in reverse).
	$5	Wheel you from the ticket counter to the gate/plane or from the gate/plane to the luggage carousel.
	Add $1-$2	Helps you with your luggage or if they help you to your car.
	$10-$20	Wheel you from one terminal to another (long distances). Tip less if they are unpleasant or rude.
	Add to the $10-$20	Wheel your luggage along with you.
Flight Personnel	None
Charter pilot	None	Unless they provide additional service.

Transportation
Driver	15%-20%, $1 min.	Driver helps with your bags or makes extra stops.
Courtesy Shuttle Driver	$1-$2/bag	You are helped with your bags.

Hotels
Before you arrive at a nicer hotel or resort, inquire as to whether gratuities are included in the price of the room. Some hotels are now charging a daily fee that covers all tipping for hotel services. If there is not a daily fee, these rates are appropriate.
Valet Parking Attendant	$1-$3	Parking or returns you car. It is not necessary to tip for parking, but always for returning the car.
Doorman	None	If he just opens the door.
	$1-$2	Hails you a cab or carries your bags all the way to your room.
	$0.50-$1	Helps you with your bags in or out of your car. If he is exceptionally helpful with directions or restaurant recommendations, same as concierge.
Bellman	$1-$2	Helps you with your bags. Give the tip after you are shown to your room. If he just carries the bags to the front desk and then disappears, save it for the person who carries the bags to your room. Upon checkout, tip a bellman who helps with your bags. Tip more for additional services.
Concierge	$5-$10	Helps with hard-to-get dinner reservations or theater tickets. Tipping is optional for just plain advice. Tipping can be done at the end of the trip or at the time of service, just keep is straight so that you are fair.
Room Service	$1 optional	If gratuity is already included.
	15%-20%	If gratuity is NOT included.
	$1/item $2 min.	Delivers special items. If you request extra pillows or an iron.
Maid	$1-$5 $10/day max.	Tip based on the mess you make and tip daily because there might be a different maid each day. Leave the tip on your pillow. Err on the side of being generous, and tip on the last day also.
Swimming Pool or Gym Attendant	$2-$5	If they provide special services such as extra seating or inflating pool toys.
	$2-$3/chair	If you want the same deck chairs every day on that same day.
Hotel Maintenance	None	Replacing light bulbs, fixing air conditioner, etc.

Weddings
Many contracted services for weddings include tips in the final bill. Make sure you read your contract carefully so that you are not double tipping. As always, if you receive service above and beyond what you expected, extra tipping is recommended.
Civil Ceremony Officials	$50-$75	More if travel was involved
Minister, Priest, Rabbi	$100 minimum	Give the gratuity to the best man who will in turn give it to the officiate following the ceremony.
	$100+	If travel was involved.
Coat Check	$0.50/guest
Limo Driver	15% of total fare	Make sure the tip is not included already in the bill.
Florists	up to 15%	Only when beyond expectations
Photographers	up to 15%	Only when beyond expectations
Bakers	up to 15%	Only when beyond expectations
Reception Musicians/DJ's	up to 15% or $25-$50/person	Only when beyond expectations
Bar Attendant	$1/bar visit	Some contend that the tax and tip are included in the cost of the open bar, and the guest should only tip if it is a cash bar. Lean toward the latter view, but it never hurts to be generous. If you are the host of the event, make sure it is not included.
	15%-20%	If it is not included in the cost of the open bar.
Wedding Musicians	None	If the gratuity is included in the rental of the church.
	$50/person or $75/person for close friends	If the gratuity is NOT included in the rental of the church.