TOPIC: What did/does your "brain dump" look like?

So I'm still early in the process and while I've start putting together what my brain dump will look like what are somethings that I should be sure not to leave out? I obviously have the grid layout. But how many of the formulas should I commit to memory and put on the brain dump? Currently I have 10 plus PERT.
Also how do I best use the space given me? I might have one sheet of paper or just a whiteboard I don't currently know but I'm planning on the worst so I can practice to that and if I have more space then better.