Note: This post contains spoilers for the Pathfinder Adventure Path #97-102: Hell's Rebels. If you plan to play that adventure, and want to be surprised don't read the written text in the photos.
Also If you've never heard of a bullet journal, take a moment and go check out
bulletjournal.com.
Now that you're back, you need a a few things to make your own journal. A notebook, a writing implement, a straight edge (ruler or spine of a gaming book), and possibly something to make quick reference tabs. I used a regular college ruled composition notebook, and just looking through the ones that I own these seem to come with between 80 and 100 pages. I'm going to go through the pages in my bullet journal with you in order.
This is my AP bullet journal.