One thing that helps is to not buy candy from Costco. Just don't. If you have it at home, it's going to get eaten even if you have it on another floor. Better

One thing that helps is to not buy candy from Costco. Just don't. If you have it at home, it's going to get eaten even if you have it on another floor. Better to buy smaller candy from elsewhere. It'll still get eaten, but at least there'll be no more, and you aren't going to go out again that night to get more candy.