Good rural trick; I think I subconsciously pick it up, along with following power/phone lines, they'll always take you to a building.
Just remember that the SSE orientation is for the UK satellite service; if in Europe it'll be a different direction.
There's a reason I still use an
analogue watch; you can bisect the hour hand - 12 O'clock and get North-South out of it.
Moss has a tendency to grow on the N side of a tree, but it's not 100% reliable as a nav tool; I'd use it to check an analogue clock N-S calculation.
There's a trick with your fingers that gives you an approximation of
how many hours of sunlight you have left; if you hold your hand out in front of your face, palm towards you, and little finger parallel to the horizon, the number of fingers (one finger equals 15mins) between that and the sun will give you a rough guide as to how many hours of sunlight is left.
Not sure if some of those are new or if they're teaching your mother how to suck eggs...