My problem with To-Do lists was that while there was a bit of a high when crossing items off the list I didn't have an adequate method of keeping track of what I had gotten done. I found a website, www.dolisted.com, that tackles this problem. It is still in the early stages, however I like the idea of getting away from the traditional To-Do list with a future-focused approach and looking back at what you have actually finished. If you have lists of to-do lists then I think you have a problem. I think that would require a Lifehacker's anonymous class.