I work half the day.. it's one of the busiest days of the year at the ol' pizza place, as everyone takes their kids out to eat before they go trick or treating.
Also, people around here are fricken weirdos and their kids trick or treat in broad daylight and go home BEFORE it starts getting dark. I don't normally critique how people choose to celebrate a holiday, but c'mon... the adventure of being out after dark as a kid is half the fun of trick-or-treating.
Anyways, once I get home I usually make up for the lost hours by staying up super late, playing halloween-related games or watching movies. One year I binge-read a bunch of Junji Ito comics. Another year I watched Beetlejuice and drank a bottle of wine and ate too much and threw up (hedonism at its finest, lol).
Another year I stayed up all night so I could play through the game "Costume Quest" in one sitting. Another year I did the same with the game's sequel.
Tonight? ... I may put on the Rift and play 'Amnesia' through VorpX.