Anything goes. I try to leave this up to the student, but some of my regular places are campus libraries and dormitories, computer labs, public libraries, coffee shops, students' homes, my home, and others.
I travel to people's homes all the time for various reasons: some students prefer the comfort of their home because it helps them focus and makes them feel secure, some have children that they need to keep an eye on from time to time, others just don't feel like leaving their home for tutoring. Depending on how far I need to travel, I may or may not charge you a little extra for gas and travel time.
It is best if you prepare specific questions to ask about your assignment, homework or other practice questions, which you are unable to answer. Of course, if you're struggling with an entire topic, I will be happy to explain it to you. Remember that my job is not doing your homework or sit with you while you do your homework, but to steer you in the right direction and help you understand difficult concepts. Having said that, I would be happy to check your homework for you - this is not considered academic dishonesty.
First of all, try to bring a clear well-rested mind that is ready to absorb new information. Apart from that, remember to bring your class notes, textbook, assignments, quizzes, exams - anything that will enable me to understand the direction, in which your course is going, and diagnose your progress level in that course. Above all, bring questions that you intend to ask me.
I charge you for the time I spend attempting to enhance your understanding of the material and problem-solving skills. I do not issue any guarantees that you will get the desired grade. If, however, I think that my efforts to tutor you are futile, I will not charge you anything and I won't continue tutoring you either.
A cumulative receipt containing dates, times and costs of all tutoring sessions can be issued upon request after the last tutoring session, provided that all tutoring fees have been paid in full. To be valid, all receipts must be signed by the tutoring party.