One acronym I use that others seem to not know is AFK for Away From Keyboard - used to explain why you might have not responded or not be able to respond for awhile.
I know we don't want to get too bloated with acronyms, but if you suddenly NEED to be AFK, it sure helps to be able say:
(away from keyboard, be back soon)
Uh-oh, one of my kids just clobbered the other one over the head with a Tonka truck and he's bleeding and convulsing, I gotta run him to the emergency room but first I gotta turn the stove off so the house doesn't burn down while we're gone, that's why I'm suddenly not talking to you! I'll come back to finish our conversation at some future time.
PA is used as an abbreviation for 'Physical Attractiveness', one of the 10 emotional needs in the MB programme. I believe some people prefer to use AS or Attractive Spouse as an alternative, because of the confusion with Physical Affair.
Voice activated recorder. With proper setup and positioning, they turn on only when someone is talking. In a car, they tend turn on with the radio and wind noise and are not always that great at recording voices clearly with all the background noise. Good ones will record for hours and can transfer the recording to a computer,
Accept what is, Let go of what was and have faith in what will be.