How to tell it is fall?

Is it fall when you start finding icicles hanging from your beard when you get to work?  Nah, that's more winter's thing.  Maybe it is when you have to wear ski gloves on your way to work?  Maybe it is when you find yourself pushing harder to keep blood flow up to your hands and feet?  Maybe it is when you have to go faster to keep your sunglasses from fogging up on your face?  Maybe it is when you get to work and overload your coat rack with all the crap you had to wear to work?  Yeah, I'm going with that last one.
Got to work and looked at the weather, 22.8F.  Holy crapsticks!

Mileage: 30