Since we're on the topic on the GPS thread, I thought it might be
interesting to share some navigation tricks people have picked up in
their travels.

My favorite one is for finding a good approximation of direction using
the moon:
If the moon is visible (and is not full), then if you draw a line
through the 'points', that line will run very close to North-South.
You should mentally continue that line across the sky as if you were
drawing inside a bowl, and where it hits the horizon is North and
South. Similarly, if you draw the line bisecting the moon across the
'waist', THAT line runs east-west. Any extremely bright stars you see
on that E-W line will be planets.

--riverman