Tuex Duex is a great work flow list app from the mind of Tina Roth Eisenberg @ Swiss-Miss. Everyone works differently and this is Tina's take or rather she created an app that works for her. Of course it just so happens to work for a lot of other people too, go figure. I have been using this app for a while now and find it pretty handy. Give is a try, it's free after all.