I had the benefit of being taught how to learn things, here are a few ways over the Approved documents :
A. Structures remeber it by A - rse Hole. (holes notches etc.)
B. Fire. Burn !
F. Ventilation Fan - ny ( sorry )
E. Passage of Sound E lvis sounds good ( he does ! or did )
Make your own up, rules are the beginning letter of the document, something about that document i.e. whats in it must be in your memory prompt. They can get hilarious. The further you depart from the rules, the harder to remember. ( and funnier they get ). when you get one that cant be beat, youll find everyone using the one you made up, just shows the human mind !! Few others coming flooding bac now, M- access mobility, etc.