I love Halloween. I go friggin nuts this time of year. Usually around January or February, my wife and I start a list of possible costume ideas. We usually make our own costumes. This year we have a 1 yr old daughter (and a lot less free time) so we wimped out an bought costumes.
I'm going to be Space Ghost this year. Previous years I was Speed Racer, Marvin the Martian, one of those plastic toy soldiers (like in Toy Story) - which I made out of green vinyl shower curtain material.
I have a party each year - DJ, homebrewed beer, etc. This year, my first cab will be up and running.