This post will really only apply to you if you have a dog (and a dog house) in your home. And if you do? Please put a warm rug outside your pet's little home. The one that I put outside Baby Dog's house is just a carpeted-like bathroom mat that I got at IKEA for this purpose and she f-ing loves it. I swear to God she even lounges on it.
Humans wear slippers on cold floors, right? Well, unfortunately dogs don't wear slippers. (If I were running things in this world, though, that would be the first thing I'd change.) Their tiny feet must get so cold and they can't complain about it, so I'd imagine they must silently curse us constantly. Do you like waking up and walking onto a cold floor? I expect not.