I remember 9/11, not like it was yesterday, but like it was maybe 10 years ago, which is about right.
I had just moved to NYC and had a breathtaking view of the World Trade Center towers. I lived not far from them but not exactly close either. When I lay in bed at night, watching them out the window was often the last thing I remembered before falling asleep. I only enjoyed the view for a few weeks before it was gone, replaced by an ominous mass of smoke and dust that I worried would blow toward my humble apartment
I remember quiet in the streets, a sense of alarm, businesses giving discounts to help New Yorkers cope ($5 broadway show tickets).
I don't remember feeling any sort of hysteria, I managed to keep my cool, but I do remember being inundated with IMs and emails from otakus asking if I was okay.
The most lasting effect of 9/11 to me is the once or twice a year nightmare I get - it's always different in storyline and situation but the feeling I get when I awake from it is the same.