Believe me when I say tutoring changes lives. Early education (before organized school systems came about) tutoring was the primary source of education. As a tutor, you received private instruction on particular subjects. The smaller one-to-one interaction was one that helped people understand the material better and it opened up the opportunity for more privatized education. This was in fact a prominent way to educate people because there were, much like today, students of all ages and skill levels. Tutoring is a profession and it's a hobby. It's something that potential students can find in any particular subject or profession.
Long ago, tutors could be found in any kind of area of life. Today, you can be a tutor in anything because you are an expert in something whether you want to believe it or not. You might be professional in life or you can be an expert in playing the saxophone. It makes no difference if you have a degree or certification in something. The glorious part about being a tutor is essentially two-fold: you impart your knowledge to people who want to learn and you don't have to be certified to do so.
Using that to your advantage will help you not only earn a little extra money, but it will help you spread your knowledge. It's the perfect job for all walks of life. Taking advantage of being a tutor will net you many benefits.
Take the classical approach to education and tutor someone in your area of strength.