Use the power of the internet to broaden your scope! Why teach people one at at time? Just because you always have... doesn't mean it's the best way!
Do you watch YouTube? I do.
Did you know that YouTube pays you when people view your videos? They do.
The more views you get, the more money you earn.
Have a look at these youtube channels where people have been enormously successful sharing their hobbies with others.
PianoVideoLessons - over 1000 subscribers and nearly 300,000 video views.
DocMisty - preschool "stuff" - almost 1,000,000 video views!
CyberSeams - a Knitting Channel with over 11,000 subscribers and over 10,000,000 video views!
Your Teacher- 36,000 subscribers and 27,000,000 views!
Do you have knowledge to share, video camera and an internet connection? What are you waiting for?