In our house we joke that the only consistency we can have is each other. My husband volunteers at a local home school co-op. He's taught several classes but has recently settled on games for teens. He does board games, role playing games and video games. This semester he's doing pre-Colombian history. If there's anything special you would want to teach I encourage you to look into that. Some teachers"make a living doing that others use the money for all types of supplies for the classes (classes here run $25-$120+supplies) depending on class/teacher for a 12 week course. So If you have any special skills you might want to try that. We've had everything from ASL to Wood working. It's fun and it's only an hour a class per week.