Thoughts: You don't get much time at ALL to work with it.
Amplify it quickly or it's gone. Repetition. Good ol' Rote. Turn
it into a short song. Same thing as memorizing a series of
numbers long enough to get through a doorway [see doorway
effect]. There's also Roman Room technique as well. My favorite
little trick is putting thoughts in a virtual mental basket and
carrying them through doorways. Odd but it keeps them present.
Otherwise, I have to go back into the other room to remember.
Relax, look around, try to forget that I was remembering and
BOOM there it is, pops right up again.