If you're lucky, you'll only feel a slight draft through a window crack. Maybe a gust of wind under the door. Either way, that Father Winter is one mean S.O.B.
Thankfully, there are easy steps you can take to make sure your home is ready for the winter season. Check out the gallery above to watch five YouTube videos with the most practical and cheapest tips for winterizing your house.
Of course, those of you in warmer climates can ignore this advice. But for the folks gearing up for a snowy, wind-chilled couple of months ahead, we've got your back. And so does YouTube.
Any big tips we missed? Let us know below.