If anyone has sat next to me during meetings or lectures, you have seen my elaborate doodles. I have always been a better listener when I have a marker or pen in my hand. I even have a favorite black pen that I like to bring to meetings or lectures for this purpose.
I just found out what I have been doing all these years.... zentangling!
Check out the web site - Zentangle- however, I don't think you need a kit... just your favorite black marker!