If you haven't been around that kind of temperature before, you are in for a 'real treat'. It can be very dangerous. Body parts can freeze very quickly, and if there is wind at all it happens faster. Forty below F and -40 C are the same. IT IS COLD. I would suggest that if you drive anywhere, take a cell phone with you and carry a few sleeping bags in the back seat of the car. Take a metal coffee can with a few candles (will provide warmth), and let people know your expected ETAs and which routes you'll be using. Dress very warmly. Mitts are much better than gloves because your fingers help keep each other warm in mitts. Keeping warm is easier than getting warm. Make sure your gas tank is topped up and I would suggest you carry and extra five qallons in the even you get stuck and have to run your car for an extended perion. Take som chocolate bars or other high-caloric food with you. If you start to shiver from the cold and then you stop shivering, that doesn't mean you're warm. That means you are becoming hypothermic. That is very bad; very dangerous.

How's that for answerin' a question ya didn't even ask?

LF, not to worry. I cry the blues whenever the thermometer drops below -20.