The branch splitting technique here is how I always used to doodle pictures of trees in the margins of my notes when I was listening to lectures at uni. (Also a

The branch splitting technique here is how I always used to doodle pictures of trees in the margins of my notes when I was listening to lectures at uni. (Also at school and work but not so much there as I'd often get scolded for doing so - which is why I never remembered any of that stuff but did remember uni lectures... sigh)