FINALLY, I have come up with a way to stem my cheese addiction. It is so very basic and easy I wish I had thought of it before.
Measure out your maximum amount of cheese you are allowed for the whole week and keep it in a container in the fridge letting anyone else know to keep their mits off. This makes it sooo much easier not to go over your goals as you will look at the shrinking piece of cheese and realise that you need to eat less if you want some tomorrow too.
This works with other problem foods too - anything else that you have a real tendency to over do it with. Try measuring out your chocloate / cheese / bacon / whatever your addiction is. But stick to it - once it's gone it's gone! You will soon learn to eat smaller amounts.