The customary tipping rate for taxi drivers is 10%–20%; bellhops are usually given $2 per bag in luxury hotels, $1 per bag elsewhere. Hotel maids should be tipped $2 per day of your stay. A doorman who hails or helps you into a cab can be tipped $1–$2. You should also tip your hotel concierge for services rendered; the size of the tip depends on the difficulty of your request, as well as the quality of the concierge's work. Tour guides should be tipped 15%–20% if you enjoyed the tour. Waiters should also be tipped 15%–20%, though at higher-end restaurants, a solid 20% is more the norm. Tip $1 or $2 per drink you order at the bar, or possibly more if you're ordering something especially time-consuming to make.