I usually wear a wicking sock to wick persperation as my feet tend to sweat, then use wool socks.....Wool will always keep you warm even when wet....usually. Then:
Artic Shield boot blankets I bought a set two years ago and they are great, put a hand warmer in them and your all set.
(in reply to Rebel Hog
They work like a charm. IMO.....
Also start out with less....you can always add a layer on if you carry a day pack!! The key is staying dry!!!!!