After screwing up one post here already, I hesitate to continue.
When I was a young kid taking first aid, we learned that PAIL described the four types of wounds, puncture, abrasion, incision, and laceration.
And one I have never forgotten, though I learned it from a children's book half a century ago, is how to spell it separate rather than seperate: there's a rat in separate. I have no idea why this particular story had such an impression on me, but I can still remember the entire plot of this book!
And Faldage's mnemonic is driving me crazy. At first I thought it might have something to do with the symbols for the elements, but two hours of sweating over it left me with zilch.