Last year my mom decided that we were all "too old" for Halloween, so we just had a Star Trek-themed get together with the neighbours and didn't trick-or-treat or anything like that. But this year she's let up and said my sister can go trick-or-treating, so I'm going to take her. (read: do Halloween stuff I'm 'too old' for anyway. )
Not sure exactly what my costume will be... we're leaning towards doing a Smash Bros. theme, with everyone being their favorite character, so that's what I might do. (Mine wouldn't be a hard costume to make, at any rate, and I could help with theirs, which'll probably be more complicated.) Or maybe not. I don't know yet.