Simply getting it out of my house has worked a treat. I've not touched any chocolate in about 6 weeks. No ice cream (apart from the odd treat of skinny cow sundaes), no lollies, no cakes. Nothing.
It helps that I can't just duck to a supermarket, but mainly it's my new found will power muscle.

take it from someone who used to sit down and eat an entire block of choccie, followed by a massive bowlful of icecream with choccie topping several nights a week (not including all the cakes and things during the week) ..... it can be done