Just went for a walk to clear my head at work, and on the little trail that runs along the railroad tracks I ran across some milkweed. The plants were dried out and the pods split open, spilling the fluffy white seeds into the air.
I don't think I've encountered this since I was a kid. The down is amazingly soft and silky, almost slick between the fingers. And the seeds fall so slowly, drifting gently downward through the chill October air.