Besides the frost, which has its whole own thread? What do you consider land,marks of the change of seasons? I used my winter coat for the first time this season a couple nights ago, and though I haven't needed it since, it definitely feels like a page has turned. Before that it was a couple weeks ago my body decided it was completely time for oatmeal, which I never eat in warm seasons!
What are your signals? Do you notice the changing of the light, or the temperature changes? Just curious how other mark the seasons for themselves, as if we believed the retailers, Advent started in September, and Christmas is just around the corner ... not a reliable gauge!