Summer is definitely over. Haven't used the AC for at least a month. But now instead of just open windows, it's close the windows because it's too cool. Later you have to open them back up because now it's too warm.
I'm starting to collect sweatshirts at work. Cool in the mornings, warm in the afternoon.
But the really big sign. My feet no longer look tan - they look dirty. Wonder why only the feet do that. On the rest of the body it just fades.