Well, I'm not out partying the night away tonight -- I'm a lot exhausted after today's sprint midterm composition, and I find parties more stressful than relaxing -- but I was at a party on Saturday, and I wore a costume! Check it out, I was A Guy with Short Hair:
Heh, as much as that qualifies as a Halloween costume all by itself, I actually had a costume in addition to that. I was Oz, from Buffy:
Of course, as Mark pointed out, I kind of dropped the ball, as I had an opportunity for an even more meta costume that I overlooked. If I'd really been on top of things, I could have worn the same Halloween costume as Oz wore in Fear, Itself: A name tag that said "Hello, my name is: God." That episode had a lot of good moments, not the least of which was the "Actual size" punchline at the end.
(And on the synchronicity side of things, when I was getting my haircut, Lonnie said "Y'know, it's funny -- I have another client named Ben who had all of his hair cut off just last Saturday." Funny how that works.)