Not really an acronym but works for me.
Lights, camera,action.
Lights= landing light on (if required)
Camera= transponder to alt (keeps an eye on you)
action= fuel pump on (if required)
Just came up with it myself and I know its a bit weak, but works for me. I also find a big black X on the back of my hand in marker pen reminds me to carry out all the checklists during the flight.