By Alexia Elejalde-Ruiz, Tribune newspapers Chicago Tribune

May 13, 2010
Room service: Check the bill to see if gratuity is included (delivery charge doesn't count); if not, tip 15 percent to 20 percent

Travel

Taxi driver: 15 percent, plus an extra $1-2 if he/she helps with bags

Airport sky cap: $2 first bag, $1 per additional bag

Tour guide: 10 percent to 15 percent of tour cost

Salon

Hair dresser: 15 percent to 20 percent

Shampoo assistant: $2.

Manicurist/Masseuse/Waxer: 15 percent to 20 percent

Miscellaneous

Car washer: $2-$5

Gas station attendant: $1-$2 (if they pump your gas), $5 if they clean windshield and check fluids

Movers: Head mover is tipped $25-$50; crew members tipped $15-$30. Can do a lump sum to be split among the crew

Furniture delivery: $5-$20

Dog groomer: $2-$5

Shoe shiner: $2-$3

Tow truck operators (jump-start, tire change, tow): $3-$10

Grocery store bag loader: $1-$5

Annual tips

For people with whom you have a regular and personal relationship