I keep a bag in the car that has clothes, a sleeping system, rain gear, food/water etc... I think it is important to have something like this, especially if you live in a rural area. I change contents of this bag out based on the seasons. I'm a little overdue on doing it for cold weather, so I'm taking care of that today.
Posting here to encourage others to have a "get back home bag" as they are often called.
If anyone has one and wants to share that would be cool too.
Loosen your lugnuts to keep them from freezing to the rims.