I use a red Letter size paper circa Levenger notebook and usually keep it at my desk but will take it to important meetings- and I travel with it . It makes for a pretty direct daily and weekly review - it is particularly good to know exactly where my projects are and what I need to do next. As a surgeon , I like to feel things- it is a real stake in the ground for me and I like a lot of grounding. I love being able to turn a divider and point to the name of a patient that I am waiting to hear from - it helps my brain to click and keep track of things and ultimately reduce "mind buzz" and worry. People know that with the notebook I am unlikely to drop an important ball. It lets me spend more time getting things actually done. I tend not to loose things like my good pen (always in my shirt pocket) and have never lost the notebook. The notebook and the lists are attractive to me and I like thinking and planning and reviewing in them- they are not a thing of beauty and I am not at all artistic- this is a very functional, basic, simple system- workmanlike. It is also very quick- instantaneous- open the notebook and BAM- start getting things done! What could be better?