If you're stuck with lots of candy, I give them out at my home on Halloween.
Anyways, my kid doesn't restrict the trick and treating to only on Halloween. There are plenty of other opportunities for Halloween celebrating. It seems like every year is getting much much better with the holiday. The whole month of October is the Great Pumpkin.
Yeah, yeah, I know..it ain't Disney. So shoot me.
I have fond memories of trick-or-treating when I was a kid in the late 70s, and we did it in our neighborhood; I supppose that nowadays is safer to do it at the Disney parks.
I second the Boo to You Halloween Parade! It is a must see!
Now what I'd really love Disney to do would be a trick-or-treat party at Epcot, with candy from each of the lands in World Showcase. That. Would. Be. Awesome.