what do you want in a dm screen

as i play by post i dont need a dm screen but for the purposes of this thread i will pretend i have use for one.



to me the perfect dm screen is not something that has rules on it i have books for that its something that helps me work out the results of actions basic physics concepts to jog my memory.



the laws of thermodynamics and stuff like that things that you need to know in any setting that uses physics similar to ours



also i would have a reminder that vecna is male because i always mess that up.



other things will be basic info on npcs age, race etc

what do you want in a dm screen