Last weekend I bought a small package of magnetic bookmarks that just happened to be the right size for my 8.5 x 5.5 planner. The bookmarks were slipped inside soft plastic, and it would make a great pocket to slip something inside, such as a task list.
I simply write the chores on a small post it note and line them up on my planner page (see image). When one has been completed, I remove the chore and put it on the other side of the page in the order they were completed. After they are all completed, I'll flip the page and start all over (which reminds me, this page needs to be punched on the right side as well.