Benji- I guess since I hang out with mostly artists many of us have "crafty" inclinations and like to make our own costumes. I forget that not everyone does that, haha.
As for uniforms, we didn't have them in my public high school. As Goddess said most of the time they have them only in private schools here. I didn't realize that public schools are starting to instate uniforms as well, though. We did have dress codes, however. They were pretty laid back but they prohibited things like skirts of certain lengths, having vulgar language on t-shirts, and things like that. There was a time period where the dress code regulations became a bit discriminatory, however, as the Columbine shootings occurred while I was in high school. After that people were not allowed to wear black trenchcoats and some other similar goth attire. I hung out with a lot of goths so they were pretty upset and it unfortunately only reinforced the stigma against them from the rest of the school.
Aspen- I'm not familiar with Lloyd in Space, though now I think I should be, haha. That will be a really cute costume, even if people don't recognize the character. I like your idea of you and your husband going as Men in Black, very clever
Goddess- Is all that candy for Halloween already? I don't think I could save it for that long without breaking down and eating it myself
Sophist- I'm not totally sure what sports were popular at my schools, I wasn't exactly "tuned in" to that. I know football (American) was pretty important, it seemed like the lacrosse players got a lot of respect as well. I myself played a bit of recreational soccer, which was not connected to the school but an outside activity. I wasn't very good but it was fun.