It is appropriate to offer a tip to a taxi driver for receiving good service, but a tip is not mandatory.     There is no charge for use of a taxi cab trunk unless the driver is loading and unloading a customer's packages.  The charge for Personal service for loading items is $1.00.  There is a charge of $1.00 for more than one passenger in the same party.  There is no charge for children under five years of age when accompanied by an adult or for a personal care attendant accompanying a person with disabilities.