May you eat lots of candy, drink lots of beer, watch lots of Treehouse of Horror reruns, and, if the mood strikes you, whip up some Skittlebrau.
Also, if you have a Kindle, might I suggest buying Boroughs of the Dead to celebrate this spookiest of holidays? It's only $2.99 and the stories in it are terrific (in the old, medieval sense of the word), as this review will attest. What? You know I don't go in for false modesty. Spinster Aunts tell it like it is.