According to "experts," here are some tipping guidelines, but remember that tipping is really up to you, based upon your particular experience with the
service. Nonetheless, those concerned probably earn a good chunk of their income through you. Okay, with that preamble, here we go:
Tip a concierge $5 for special service. Yes, I know that they often receive a kickback from tour operators, but reward exceptional service. A massage therapist should be given 15 percent of the cost of the treatment just as a waiter receives the same amount for your meal. A room-service waiter also gets 15 percent. Remember that your tip is based upon the amount of the bill before tax.
Housekeepers receive $2 to $4 per night, left discreetly on the pillow; no need to add a note, but I know someone who always does. Housekeepers often provide a convenient envelope with a name on it. A train porter gets $1 to $2 per bag as does the person at the airport and the driver in a shuttle who collects your luggage.
Cab drivers are allotted 10 percent. A wine steward is awarded 20 percent of the wine bill while nautical types give the cabin steward $3 to $5 per day.
Tipping overseas depends on where you are. In Japan or Thailand, people are insulted when provided with a tip. Go figure. In other countries, they are insulted if you don't. Best to Google the tipping habits in the specific country involved. Be aware that in Europe, a 10-15 percent service charge is usually added to bills, so a few coins will suffice.