u dont have to tip alot ...try to tip people that handle your food

and nobody is ever upset really when they only get like 1$ atleast its 1$ so carry some 1$'s for short taxi rides and only tip door people and luggage people ON THE WAY IN not out ....however you do notice things like SUPER clean cabs that look like they never been riidden in and a guide/ host / entertainer attitude from the cab driver almost really make you want to tip!