Tim Sanders has a great post about finding last week's promise and following up on it. Being able to actually do what you say you will is a rare find in the work force. It is so easy to promise things, and even with the best intentions not coming through.
I have found that I have to keep notes and really stay on top of my to-do list. Because if I don't I will forget. There is just too much going on and I tend to not be paying enough attention to the things that I am saying that I will do. So resolution for this week - promise less things and always follow through.