I have some neoprene toe covers that are okay above freezing into the 40's, but don't do jack squat below freezing. Like they're not even there.

Freezing toes has been a real problem for me this winter. I would entertain boots and platforms if I had a shorter commute, but I really prefer to be clipped in for a 31 mile round trip.

I will try to see if I can coax my shoes a bit wider (they're plenty long) to accommodate 2 pairs of socks.