My typical GM’s-side loadout looks something like this:
- Blank pad of paper for taking notes
- Carefully-selected pile of dice (not so many as to be messy, not so few that I need to dig out more mid-game)
- Counters I expect to need
- Little notes stuck to the inside of the screen
- Copies of stats I reference often (recurring NPCs, etc.)
What do you have behind your screen, either for your own convenience or to hide it from your players?