The model I use for my rates is sliding-scale pricing. This means that clients with more limted resources can afford my services, while those of greater means can choose to pay more according to the value I provide. As such I do not accept tips unless the client insists or has special pricing. Win-win for everyone!
Special pricing is currently available for clients referred from the CSHA Pro Clinic, active duty military, and students with valid IDs. Inquire to learn more.