Our area has been back in school for close to a month now, so I'm used to it already. My feelings are always fairly mixed about the whole thing. On one hand, there are school zones, buses, and more traffic at certain times of day. My route and normal time going in to work takes me by an elementary school and I tend to spend an extra 2-3 minutes going through there when the lights are on and the parents are all dropping off their kids. Occasionally, I'll also get stuck behind a school bus for a couple of minutes. On the other hand, less mischief goes on when school is in. The only time we've ever had a serious problem with cars in our parking lot being broken into have been while school was out.
Technically, I'm still a student, so I'm back in school. The only 'classes' I still have to take are the kind that don't actually meet and don't even get a grade. The university just wants its money.
So personally, school being back in has no real effect except to remind me I need to hurry up and finish my dissertation so I can graduate.