Here's the plan: (sorry it's hard to see, my scanner doesn't like pencil.
And here's some of the blocks
I've gotten all the Big X's strip sets sewn and cut into the right width. I'm in the process of adding the setting triangles. The strips for the little x's are all cut, but not sewn.
This project requires me to think while I'm sewing, so I don't tend to work on it that much.