Well, I just spent over 30 minutes on her site and I wonder why I don't get any quilting done. Lot's of very easy/quick quilts. Thanks for sharing, Craftybear. You always find neat things to point us to.
By the way, the math is helpful but I think those who are match challenged will always find those who can "figure it out". I can typically figure something like that out and my friends will call me with those same questions. However, they would much rather I give them the answer rather than show them how to do it so they can calculate it themself for future questions.