Investing in a nice paper planner, rather than an app or device that claims to boost your productivity, is a fantastic idea. There's a lot of evidence that writing down your to-do list and daily schedule — rather than typing it out on a laptop or on your iPhone — makes you feel more focused in the activity at hand. A physical planner, on the other hand, becomes an artifact, a time capsule, if you will, of all the significant events that occurred during that calendar year once the year is through.