Here's an awesome book to read that has a lot of good info in it, and a lot of pictures. It may give you some better ideas, I haven't got a cheat sheet, which is an excellent idea. I know that for compass heading is easy, just stick a stick in the ground and place a rock on the shadow, wait 15 min later and put another rock on the shadow. Put your left foot on the first shadow rock and the right on the last shadow rock and your facing north.

Camping &Wilderness Survival