Homeschooling does not need to be really expensive, but it is wise to do some financial planning for your curriculum and other resources.
Following are some tips to homeschool on a budget:
Websites for Used Curriculum:
www.vegsource.com (Scroll down on the home page to the homeschooling link. It will be listed on the left hand side of the page, with the other discussion boards.)
The Book Samaritan provides books and curriculum to families who have financial needs. For more info: http://www.booksamaritan.com/index.html.Also shop for used curriculum on Ebay, Half.com, and Amazon.
If you are a member of HSLDA, you may use your membership card as a "Teacher ID" card, and receive discounts at teaching supply and office supply stores.
Attend homeschool used book fairs & curriculum sales; you can get some great bargains, and some people even donate free books. Also watch for library sales.