i´ve always had that problem, my left hand keeps warm because i sit on it :P but my right hand is soooo cold i´ve had people asked me if i am still alive :P, even if the heater is on or next to me, but it happened most in this place i worked before where the ceiling was made of steel sheets, even they had insulation stuff on them, it pretty cold, and right now i work in a place with glass walls so cold weather gets you very nicely............

i think maybe it the building materials in combinatin with not moving a lot, and maybe that just you, i sometimes bothered my sister with my cold feet and i didn´t felt them cold they just were that way.

you can wear gloves (i started using one, just one hahaha) and theres a thing you put on pizzas (crushed pepper) which i´ve heard that if you stuff them in your socks with heat up your feet (i´ve never tried but that´s what i´ve heard, a lot)