How do you like to approach writing about games?

I've noticed there are some folks writing at length here on their experiences playing games, so this felt like a good place to ask. Do you take notes as you play, and/or after each session, then write out full thoughts upon completing a game?

Or are your reflections compiled only after finishing a game, no notes?

I've dabbled with different approaches, and haven't really settled on a consistent process personally.

@patientgamers