Hi - we met at jaecat's tea *waves* I popped over and saw this - hope you don't mind a comment :-)

We usually have some limits - nothing before lunch, only so many pieces per day. They keep it in their room and really I haven't have any issues with it getting snuck by either themselves or anyone else. There is trading during the couple of days afterward. Extra candy left from us giving out is sent off immediately to Dad's office so it's only their actual "haul" candy around. Their intake is definitely up for a little bit but twice a year (Halloween, Easter) I figure its no big. They eat plenty of healthy stuff all the time.