I just heard about this fun Halloween Tradition, The Switch Witch. Basically, you tell your kids to pick out a few pieces of candy (we did 15 each) and then they leave the rest out for the Switch Witch, who comes and switches the candy with a toy.
The kid inside of me immediately thought this was stupid. I remember rationing my Halloween candy so it would last since holidays were basically the only time of year we had candy in the house. But, the parent in me thought this was amazing.