DS loves chocolate too and once he realised I kept a secret stash of Mint Tim Tams in the fridge and he could open it himself, he became a real fridge stalker. Now I have hidden them better but also keep a little plate of cut up fruit and saltana's in the fridge and find that he will pick at that if he's hanging around doing the chocolate search. It took him a couple of days of asking to realise it wasn't there anymore, now he is pretty good.
I was pretty excited about this Easter being the first Easter that DS would really 'get'. What I didn't realise is it made him think that everyday was chocolate day