Before I get things started, some links to see to first of all. Norma wrote an update on the state of her brain. Krisztina had Hallowe'en treat ideas here, here, and here. Lorelei featured werewolves on her blog. And the Whisk had an icky Hallowe'en toon at her page.
Now then, since it is Hallowe'en today, I traditionally go with a whole mess of tricks and treats in images. Enjoy!