I forgot to mention, I don't keep a separate work and personal TODO list. Again, I think it ends up harming the piece of mind aspect because it creates more than one place for keeping track of the things you have to do. Also, it's far to easy for me to ignore the personal items for the work items, which again defeats the purpose of keeping the list. So, if personal items are starting to crowd out my work items on the list, it's a signal that I'm working too much and need to focus on balance.