-10 c here today (+14f), clear and sunny and just a slight skiff of snow on the ground.
Did a 5 km grocery run.

After the dissapointment with exploding zipper on the Gore booties, I looked for other solutions to keep my feet warm. I found these generic neoprene socks at a surplus store, and for the price,($15), figured they were worth a shot.

Worn with a light pair of sport socks, the fit inside my shoes was very snug, but my feet stayed nice and warm.
I'm thinking I will just go and buy a pair of shoes one or two sizes bigger for the winter and wear the neoprene socks coupled with regular or arctic socks for really cold conditions.