Homeschooling can be expensive, but it doesn't have to be. Having a tool belt full of frugal resources will help. When it comes time to buy curriculum, I try to wait for our local used curriculum sale. If I can't wait for that, or they didn't have the books I needed, I'll check homeschool classifieds next. If I can't find it used, then I search all the links below that sell new books until I find the best price possible. If you know of other great resources that I haven't included below, please write and tell me about it in the comments section.
Free printable worksheets for handwriting and math etc.: http://www.superteacherworksheets.com/cursive.html
More free printable cursive worksheets: http://www.kidzone.ws/cursive/index.htm
www.Homeschoolclassifieds.com --Sell or buy used curriculum with free classified ads here--an amazing resource!
Www.homeschoolreviews.com -- Before spending money on materials, read how they worked for other families
www.Rainbowresource.com -- Discount supplier for homeschool curriculum and materials
www.lovetolearn.net -- Another great site for buying new curriculum and for readinggreat homeschooling advice from a seasoned mother
www.christianbook.com -- Discounted supplier for homeschool curriculum
www.amazon.com -- Yes they have curriculum too!
www.alibris.com -- Great prices and lots of discontinued and hard to find titles
http://www.betterworldbooks.com -- Like Amazon, but sometimes with better prices and shipping is free
http://www.homeschoolbuyersco-op.org/ -- A free membership group that allows you to buy curriculum at wholesale prices. They even recently had a special deal for legos!
http://donnayoung.org/index.htm -- free printables, especially for planning and organizing your homeschool
http://www.homeschoolfreebie.wholesomechildhood.com/ -- This is one to check daily. Everyday there is a new free download, but it's only available for 24 hours!
http://www.eequalsmcq.com/index.htm -- This is a downloadable science curriculum. The first volume is free and your kids will love it!
http://www.currclick.com/ -- These are downloadable lessons and homeschool helps. Most of them cost a few dollars but every week they offer one of their products for free. You can sign up to be notified of the free resource each week.
http://www.mkisdraw3d.com/public/p_ovaa/-- Some amazing drawing lesson videos online from Mark Kistler