I'm in the first 20% of a book entitled "The Checklist Manifesto" by Atul Gawande. So far, it seems to be quite anecdotal about the prudence of keeping checklists for very important sequences of tasks. He is an MD, so it is unabashedly medical. But I've watched enough "air disaster" documentaries to know that not extending flaps ins a no-brainer mistake that happens too frequently.

This book, along with my Bullet Journaling, will probably lead me to some sort of hybrid between an analog bullet journal and a Mac outliner app.