I'm a voracious notetaker primarily because I have so much life going on that it's difficult for me to keep track of details, action items, "to-do" lists etc. So I've always keep a small pocket notebook nearby or a yellow pad at my desk. I found that I was spending a lot of time searching for my little pocket notebook or feeling frustrated when I need some bit of information like a phone number or list on my yellow pad which was inconveniently sitting back in my office.