juxtapilot
Snowflake
Flight number (although it's on the F-PLAN page anyway), BLK, MIN fuel, Planned limit weight for takeoff, SOB, and ATIS. But I need a better system because it usually is a disorganized mess of chicken scratch and I'm trying to figure out a new system that works for how we do things at the new shop. Taxi instructions I'll usually scribble them on the jepp chart itself with the pen function which works decently most of the time.
I’ve got a nearly paperless flight deck. Everything I need to know is readily accessible via the glass, and whatever isn’t (usually just takeoff min fuel) I’ll write on the Aerodata print out. I used to have the flight number and a few other things written on a piece of paper but realized that’s kinda silly since I can see it on the MCDU anyway or know where to find it.
TLDR; just learn where the info you want is and you don’t have to waste paper.