You can always take a “pay it forward” approach to tutoring. My kids had some math and test prep tutoring, but now they volunteer as free tutors at the local community center. They have also taught at summer enrichment programs for kids from disadvantaged communities. They use some of the best techniques that they learned from their teachers and one-on-one tutors. In some areas, they are better than the professional tutors because they are recent high school graduates and are more familiar with the current topics and trends in the courses.