No frostbite or immersion foot to report.
But here is what I do to keep my feet warm.
I have worn light hiking boots up Rainier several times.
Asolo's. They are much like these (http://www.rei.com/product/706762) only not gortex.
My feet stay warm under very cold temps. There are conditioning and gear tricks that I use. Conditioning tricks include lots of foot exercises. Ankle rotations (using theraband), toe lifts, and wearing light shoes in cold weather as often as I can to vascularize my feet.
Gear tricks have mostly been listed here already, don't get your boots too tight. Don't let your feet get wet. If your boots get wet, pull out plastic bread bags and put them over dry socks.
Standing on cold snow conducts heat out the soles. Have good insulation in your footbeds/soles.