
1. Everything is new. New jobs, new classes, new students, new books, new clothes, new shows on tv, new theater and symphony seasons. New muscular physiques and bulges to gawk at.
2. Everything is busy. The mind-numbing boredom of summer is replaced by days packed with activity. Every moment is vibrant and alive.

3. It gets crowded. The mind-numbing loneliness of summer is replaced by crowds of people, returning from their conferences, vacations, visits to relatives, and various excursions, ready to hang out with you again.
4. It gets cool, so you can jog a few miles without getting soaked.
5. You can stay inside. People stop longer pressuring you to spend every waking moment outside. No more hot, fly-infested, uncomfortable picnics, no more sitting on lawn chairs and swatting mosquitos. It's cold out --- go ahead, stay inside and watch tv.
6. Football. I don't like watching football, but I like watching football fans.
7. A regular gym schedule. The disruptions of summer are over, so you can get back into a regular gym schedule. And so can dozens of other gym rats for you to sneak peaks at in the locker room.
8. The trees change. After two decades in Los Angeles and Florida, where they didn't, it's quite a spectacle.

9. The days get shorter. The sun sets at a normal time, instead of that ungodly 8:00 or 9:00 pm.
10. The best holidays, Halloween and Thanksgiving. Not to mention my birthday.
11. You can eat again without worry. Have an apple cider donut or piece of pumpkin pie. Your cute sweaters and lumberjack shirts will cover it up, anyway.
12. Snow is coming soon.
See also: 10 Things I Hated About Summer and Playing Outside.