Not to go off on a long tipping thread, but my rule on tipping cabbies is that it totally depends on the service. If the guy does ANYTHING wrong--takes the long way, goes too easy on yellow lights, sits in the cab jabbering away in Hindi instead of loading my luggage in the trunk, keeps a dirty cab, is rude, gets lost, whatever--I zero him out on tip. OTOH, if he gets me to where I want to go, as efficiently and quickly as possible, I tip 10% of the fare including tolls. The quality of service from cabbies these days is so appallingly low, I hate tipping them for awful service.