One way to homeschool free is to use library books and the internet instead of buying books and materials. There is so much available and it only takes TIME to find what you need. Homeschooling need not be expensive if we use what is available at no charge.
Also, used homeschool materials are readily available. You can often save 50% or more off the cost of new homeschool books.
Hope this is helpful to you and good luck!