Little Miss asked a question about keeping hands and feet warm. My hands are always cold and I hate it. I tried lots of different types f gloves and finally found a pair that worked really well.
These Mizuno Running Gloves turn moisture into warmth. It has something to do with the material used to make the gloves. So in the rain or with sweaty hands, the gloves get a little warmer. They have never failed me yet. I have even used them skiing and they are very thin gloves.
I have used some other types of gloves including some heavy duty Brooks gloves. None of them worked as well as the ones pictured here. Another very important thing to consider is the fit of the gloves. Gloves that fit tightly never keep your hands as warm as well as loosely fitted ones. The air just moves around you hand more in a the loose fit. The tight fitting gloves also cut off circulation which is a nemesis to warmth. Good luck on staying warm.
As for keepig your feet warm, I have no idea. Thin Smart wool socks are the best in my opinion for keeping feet warm, but running and most walking shoes have so much open space to make them breathable that they are not good at warmth. Fit is also important for socks. I have had my toe nails fall off because of doing long runs in socks that don’t fit well.