I am, though I’m not yet sure what I’m going to wear. A lot of the costumes I’ve been wearing to cons lately just aren’t especially appropriate for work (though I got away with one of them at my last job, years ago). Last year I wore a Starfleet uniform to work, and it went over well, but I’d hate to repeat the theme.
If a costume has to be made, I plan four or five months in advance – the more lead time the better. If I’m planning to buy, more like a month. As I’ve sucessfully (if sloppily) constructed my first garment on a sewing machine, I have the option of making my own from now on, but it turns out that’s nearly as expensive as a commission or a purchase, these days – who knew!
I do like to surprise folks with my costume choices when I can. What can I say? It’s the thespian in me.
EDIT: Just noticed that Halloween’s on a Saturday this year, so the whole “dressing up for work” thing is moot. 🙂