Random Bit of Knowledge

Use a Wristwatch as a Compass

Hold a watch with 12 o'clock on the face pointing left. Move your arm so the hour hand points at the sun. The spot halfway between the hour hand and the 12 (on the face) is south.

btw: for those that don't wear a watch or wear a watch without hands (digital), I guess you better not ever need to determine south or have another method on hand...