I keep a 3 month supply of food in sealed drums in the workshop, and most of the camping gear is there. I have a "get home" bag in each of the cars and the jeep which has 2 gallons of water(Desert living) and essentials for walking 20 miles should the roads be impassible.
Since I do 130 miles every day in the back country and climb a mountain, in my main driver(Civic SI built in Swinton) I also have a trangia and a pot, 3 days food, a pint of methanol, a Swedish evac blanket(very cozy), my Thermarest, gloves, a bag with spare clothes, good walking shoes, Flares, a US mil entrenching tool, chains, fire extinguisher gallon of gas, piece of vinyl.
In a Kelty Redwing pack I have another set of essentials as well as my mac and associated electronics.