34 things you need to know about dressing for the cold (or 8 if you're in a hurry)

Short Version

1. Dress in layers - many layers - 3 or more.
2. Wool closest to your body.
3. All the layers have to be loose.
4. Change your woolen socks frequently. 
5. Warm hat and warm boots.
6. Mittens, not gloves.
7. Use hand and feet warmers if you need. 
8. Be nice to the planet and the animals on it. 

Full version

1) 

Three layers is the basic for dressing in the cold.
The three layers are:

1. a thin layer next to your skin, called underwear. 
2. an insulating layer, thicker than the first layer.
3. an outside layer that protects against wind, rain and snow.