[dlkinney]

I think it's important to dispute your recommendation to keep a mylar blanket in case of emergency.

Those blankets have practically zero thermal advantage, and really are only good to deflect wind, rain, and snow. (As well as signaling.)

Please keep a large wool blanket in your vehicle if you are in a location that threatens extreme cold with the inability to walk to safety.

I would hate for someone to be stuck in a tight spot and realize the useless thermal properties of those blankets the hard way.

[Ma8ee]

People in cold climate know to always have a full set of outdoor clothes in the car, either wearing them or in a bag even for shorter drives. You don’t want to be the guy who freezes to death after not bothering to put on a jacket since you are only picking up a pizza in the next village 3 miles away and then freezing to death because your car broke down.

[protomyth]

Well, the one I bought works damn well for heat and had one huge advantage over wool. I can bungee cord it to my car and be very, very visible to any search going on to find me.

I would hope people going out in winter also have proper coats and pants, but extra blankets as well a proper survival kit is a very good thing. Small grain shovels are also quite nice.

[awestroke]

Yes. Keep wool clothes and a set of winter coveralls to quickly put on in an emergency