Some people think that homeschoolers have to be really organized. The truth is that some of the most well adjusted and intelligent homeschool kids I know have some very unorganized parents. Setting yearly, monthly, and weekly goals is a great idea. Having a goal in mind and breaking it down into smaller pieces is how most homeschoolers survive.
I've written a post about homeschool lesson plans with various ideas on how to structure a homeschool day without burning out before Thanksgiving. I hope it is helpful to someone.