We've had our first real snow of the year and it certainly got me thinking along these lines. My fairly new commute is almost entire rural, but it's a fairly well-traveled area so I'm not worried about getting stuck longer than overnight most of the time.

My Jeep Liberty has new snow tires, and got to test out my tire changing set-up last week.

I keep my Day hike kit in my Jeep to use as a get home/stuck in a snow bank bag. It's got all the basics: water, food, cook kit, fire, knife, saw, chemical hand warmers, poncho, paracord, light, etc... Here's a little vide, I've tweaked it a bit, but it's basically the same as it was last winter:

https://www.youtube.com/watch?v=5pnoNOdK2yc&list=UUT9fpZEy5XSWkYy7sgz-mSA

Also stored in my jeep are: jumper cables, FAK, tool kit including extra fuses, fire extinguisher, headlamp, road flares, work gloves, Jeep fluids (washer, oil, transmission, etc.), a collapsible shovel, ice brush/scraper, an old broom, wool blanket, an old winter coat, a flo orange safety vest, a few Nalgenes in insulated carrier, extra hats/mitts/socks/sweater for everyone in the family, and an emergency diaper change bag including a warm change of clothes for bacpacgirl.