How do correspondence players keep track of ideas during games? I've taken up correspondence chess again, and planning has always been one of my biggest weaknesses. It's still something with which I struggle. Besides analyzing specific variations, how do correspondence players keep track of the plans they want to execute, or prevent their opponent from carrying out, during a game?

For example, in a recent game, I knew I needed to not let my opponent put his rook on the 7th rank, as he would likely win another pawn, which I let happen a few moves later.
I write a short description in my notebook for each move I make, unless it is a trivial move (e.g. a forced recapture, an opening move I know already or an endgame that I know already).

I try to imitate the style used in Logical Chess by Irving Chernev.