I am a substitute school teacher. Each district has its own qualifications, but with mine, I just needed a Bachelor's degree, and pass the test (along with FBI checks, blood tests etc.) Anyway, this job opened a whole new arena to me. I was able to meet the band directors of the junior high and High school. When I made myself know the them, I was requested by them to sub for them. Just think, classrooms filled with potential students! It was really great when the band director noticed one of my students, and was giving her compliments. That complimented me. Then you can get word of mouth references really easy. And, the best part of being a substitute teacher is you get to work only the days you want, and there is always more than enough days to work, and not enough subs to go around. You are assured of having as much work as you need, or want.
Along with being a church pianist, being a sub gets me out in the public where people can see me, meet me. It's a lot better than a business card!