I loved Halloween as a child, although trick or treating hadn't caught on in our area in those days - it was an exotic, exciting performance that we saw in American films and TV. We confined ourselves to spending days gouging out a turnip for a lantern and playing apple bobbing and spooky games. Fast forward to when I had my own DC in the 80s and trick or treat (and pumpkins) had made their way over the Atlantic.
Our children loved getting dressed up and going trick or treating (with an adult hovering at the gateway). They were so excited when the homeowner pretended to be frightened and gave them treats. Since then I've accompanied my nephews and nieces and look forward to introducing my GC to the tradition soon.
Needless to say, we have a fully decorated porch and welcome all manner of witches, ghosts and ghouls!