Go away.
Its minus 3billion Fahrenheit outside and a wind factor taking it down to what the penguins would call 'frosty'. Not for me. Nope. No running, no classes, no doing anything except staying under the covers with hot chocolate and occasionally taking a selfie of my pj's or scrolling to pictures of a warm beach somewhere.
It's a weather day. What do you do on days when its too cold to do much of anything?