Transportation TippingCabs/Taxis: Anywhere between 10% - 20% of the fare. Personally, I would probably tip $2 on an $8 fare (easy to round up to a 10 dollar bill) and maybe $5 or $6 on a $40 fare. Airport/Hotel Shuttle: Probably fewer people tip these drivers than not, but I tip $2 if driver was friendly or helpful.
Tipping at a Hotel / Resort in CanadaDoorman: $2 if he hails a cab.
Bellman: $2 to $5 per bag (5-star hotels - with which I am sadly less familiar may have a higher standard for tipping)
Chambermaid: $2 to $5 per day or lump sum at end of stay. Read more from the About.com Guide to Hotels about tipping the chambermaid.
Room Service: Be sure to check whether a tip is included in the cost of room service. It is not necessary to tip on top of this. Otherwise, 15% is common or $2 to $5 if staff is delivering a no-cost item, like extra pillows.
Parking Valet: Typically, a $5 - $10 tip when picking up your car; some people, myself included, also tip when leaving it.
Concierge: Tipping the concierge is not usual, but if you are particularly pleased with your service, a tip at the end of your stay is no doubt welcome.
Restaurant TippingWaiter: 15% - 20% of the before tax total is typical. Above that is generous and not uncommon.
Bartender/Cocktail Waitress: The dollar per drink that applies in many U.S. cities isn't as strict here. Ten to twenty per cent is standard or often a "keep the change" rule applies.
Sommelier: I personally do not tip the sommelier (wine steward who helps pair wine with your meal) separately. I tip the appropriate amount on the check (including wine, excluding tax) and expect the sommelier to receive his cut at the end of the night. Other people slip the sommelier his or her own tip.
Coat Check: $1 - $2