I used to find it amusing to see the fellas with the old land rover defenders kitted out with everything including the kitchen sink, but even keeping a few supplies under your car seats is a form of prepping, say if you come home from work and your home is knee deep in water because the river has burst its banks like happened not too far away from me, if you had a wool blanket some water a cup some coffee and powdered milk a small camping stove etc you could hightail it a quarter of a mile up the road to the woodland car park and console yourself with flagons of hot Bovril, and super noodles,