I’ve heard things like having a grab bag or an evac bag and things along those lines. The more common model than the pandemic is that you have to hightail it out of Dodge in your car in a hurry.

Over here in the cold Nordics I always keep warm blankets and at least two ways to make a fire in a small bag in my car.

The fire is just a bunch of (waterproof) matches and a few cheap Bic lighters and a german military stove from an army surplus store. Cost me maybe 8€ a decade ago.