Here are the links promised. We have posted the Excel worksheet, Chore Slips, and Chore Chart. Also is a link to the Mixed UP blog. Feel free to add comments both good and bad, and how are you working the solution at your house.
Here is your blank Chore Chart. We have ours in a frame by the Chore slips so we don't have to tell the boys how to spell their chores. This way, they can read the Chore Chart, find their Chore and write it without any assistance needed.