Forgive me, WW, if these have already appeared - I started to go through Mnemonics I and quailed at all the medical and astronomical things I knew I'd never remember, even with mnemonics!
but here are three I remember:
for the points of the compass, travelling clockwise from the top: Never Eat Shredded Wheat.
for the postal code of the CBC, Canada's national radio stations: Make 5 Weiners, I'll Eat 6 (M5W 1E6).
for spelunking: stalactites hang down from the ceiling, whereas stalgmites point up from the ground.
my apologies, again, if these were a repetition....