We've varied... we've gone from packaged curriculum to self-created curriculum (using lots of online sources!) back to packaged curriculum this year. We went back to a packaged curriculum (SOS) since I was going to be delivering our youngest right at the beginning of the academic year this year.

If I had my choice, I'd lean towards unschooling for my eldest -- he's very hands-on, learns-on-the-fly -- but if you sit him down with a worksheet, pencil and paper, he'll take a year to finish.

I'm hoping to do unit studies with my younger 3, since they're all about 2 years apart from one another.