Dining out, hotel housekeeping, even Amazon deliveries — saying "thank you" in the form of cash is rife with uncertainty. It's that age-old question: Whom do you tip and how much?
Fortunately, there are general rules for the dos and don'ts of leaving a tip throughout the year and over the holidays.
For example, at a restaurant, always tip the server 15 to 20 percent of the pretax amount. If you are out for drinks with friends, make sure you bring cash for the bartender — usually $1 or $2 per drink is acceptable.
If there's a restroom attendant, even if you don't need or want their help handing you a towel, tip 50 cents to $3. A coat room attendant should get $1 per coat and a valet should receive $2 to $5.
For all salons and barbershops, 15 percent to 20 percent of the bill is the norm. If you are traveling over the winter holiday, leave $2 to $5 per day in your hotel room with a note. Even just a simple "Thank you, housekeeping" goes a long way.
If you have a doorman, make sure to tip $1 to $4 for carrying any luggage and $1 or $2 for hailing a cab for you. And then tip 15 percent to 20 percent to your taxi driver.