No matter what I'm doing I always have a notebook handy. I have one in my purse and by my computer. I love making lists and I feel like it's the only way I can stay focused on what I need to do. As someone that runs their own business, it's really important to keep on top of everything and my lists help me stay on task. I also love writing down and sketching design ideas. My Monday must have are notebooks that are not only functional, but beautifully designed. How many notebooks do you use at one time?