What should go into a world "cheat sheet"?

[Corneel]

Derp. Missed that.

Still, I think that the major cities and major (obvious) players are probably known to the PCs. You probably wouldn't want to put every politician and the capital of every state in a cheat sheet of the US, but you'd definitely want to include the PotUS and a few major cities like New York and LA.

That's why I snipped that part in my quoting you.