Me too. If it works on a battery, I don't trust it. If it's got a glowing panel, I don't trust it.
The least you can do is know all the cues that point North-South, key constellations... Used to be able to tell the time from the moon's position but that knowledge is lost to me now

I must have it somewhere in my notes.... if I brought them out that is.
And of course be familiar with the map scales.
We had one map that was of such large scale (smaller area) and that threw me off quite a bit because I was only used to maps that were of a smaller scale. No really, it was ridiculously large scale. Got used to it. We never got lost though because I kind of memorized the area.
Then again, navigating in absolute pitch black in the thick of a forest can be challenging for just about anyone. Had to rely on the GPS for that one. Hey, no one's perfect.