Finally snow here! And yesterday my first (super slow) falling, sliding still 2m slowly on the ground. Only spikes would have helped there, but they don't fit in my frame (the 45Nrth Xerxes 700x30 are too high for my frame, under the fenders).
And since we are talking about cold, slightly off-topic and totally fat bike area: In case someone wants to race across a frozen lake in Northern Quebec in February, for 32km, and I imagine crazy icy winds (I guess -20 to -30°C plus windchill):
https://velosurlac.com/en . I never went there, but it sounds crazy...