The cold air definitely makes me very stiff! I even notice it just sitting for a few minutes.
Anything warm helps, such as layering clothes, as ak angel said. Extra blankets, drinking warm tea or hot chocolate (had to have a cup of that last evening :)). And, I find just moving around more and trying to get more steps in my day keep me a little warmer. And yes, I am now wearing long underwear, which feels great.
The upcoming forecast bumps up the temps next weekend. Sure hope they're right about
"Pray as though everything depended on God.
Work as though everything depended on you."