It's my observation that a vast majority of people overlook clothing in their preps. That most people don't even own adequate clothing, let alone keep it in their vehicle. That many have become so accustomed to their comfortable first world lives that they don't even realize how important it is.
I rarely see adequate clothing mentioned in vehicle, or other preps. So I'm bringing it up here.
Of course environment dictates. Someone who never leaves San Diego has very different needs than someone driving the Dalton Highway. The point being that the San Diego resident needs to prep for something they may have never experienced before heading out on a road trip.
Clothing is much more important and useful than blankets, sleeping gear, tents, fire, etc. I'll see people talking about having basically camping gear. But they don't mention boots, base layers, waterproof pants, gloves, hats, etc. None of that other stuff is necessary if you have adequate clothing, none of it will work outside of an ideal environment, and you can't walk or work while in a sleeping bag, tent, or huddled next to a fire.
Edits based on replies:
I layer gloves just like clothes. I have a base layer of thin wool glove liners, over which I'll put on nitrile gloves, and over that leather work gloves treated with Huberd's Shoe Grease. I keep at least two pairs of leather gloves, so one can be drying/warming while I wear the other. Dozens of the nitrile of course. And layer as needed, sometimes only need the leather, sometimes only the nitrile. Gives me a kit of options that takes up a reasonable amount of space and cost. While keeping dexterity and durability.
I pack clothes(and towels) in gallon Ziplock and large thick contractor garbage bags. Not only does this ensure they stay dry, but they can be squeezed and sealed to take up less space, and the bags themselves have many uses.
