1. Dress warmly and wear layers of loose-fitting, lightweight clothing so you can adjust with the temperatures and conditions.
2. When the weather turns cold, add these few extras to any "Basic Emergency Kit"* which should be in your car at all times:
WINTER VEHICLE KIT:
- Hand Warmers: instant heat packs - Carry 4 per person — it'll give you 8 hours of warmth if you're stuck
- An Snow-brush and Ice Scraper: Don't get a cheap one, make sure it is solid and durable.
- De-Icer Washer Fluid
- Blankets/Sleeping Bags: You can use an emergency bivvy as well.
- Snow boots: Assuming you are not wearing them that day.
- Extra Pairs of Wool Gloves
- A Hat and Scarf
- Food and Water: Carry a supply of high-energy snacks and a bottle of water just in case you get stuck.
- Sack of Sand, Cat Litter, or Snow Melt (Salt) - For traction.
- Small Snow Shovel
Okay, so maybe the last one was more than one thing but I think you all can manage.
* More on this topic later.