3. Go back to school with your kids.
Substitute teaching can be another way to make some extra money during the school year. Look into the requirements for your local area. Many times a college degree is required. Teacher assistants and lunch aides need substitutes as well and do not necessarily require a degree. I subbed for many years when my children were younger. It provided me the flexibility I needed for our schedule. It was also nice to not take assignments when my kids were sick. You knew that another substitute would just fill the position. Most times you can work as often or as little as you like. If working with students one on one is more your speed, try out Tutor.com. You can earn between $10-14 an hour. Those qualified to tutor math and science are paid more.