I have a little notebook I keep with me and write all my food down each day in there. I keep a running tally of my syns and like cocktailprincess, I allow myself 105 per week as a maximum. I'm usually under it (or right up to it!).
I also note how many speed foods I'm having too. At least 5 a day...aiming for 8!
I will probably wean myself off keeping a food journal when I am at target, but whilst I'm getting there, I need to write it all down to keep myself focused. It's too easy to forget the odd thing here and there...and before you know it you've 'forgotten' a kg bar of dairy milk! LOL!