I have a small bit of the survivalist in me. I keep all our emergency and kayaking gear by the door. This includes tents sleeping bags, big first aid kit, therma rest and my Bail out bag( also known as the Oh S*** bag( this bag goes with me all the time, it contains everything from fire starter to saw and emergency blanket). We have water filters in working order and on hand. For a really big scary thing we have a rally point accessible only by boat. I also keep a good supply of things like honey, brown rice dried beans etc on hand. I tend to keep the vehicles filled with gasoline also. in our gear we have a coffee steeper (kayak style) small and light weight. I have 2 very good backpacker stoves, I keep all the fuel bottles filled so they are ready to go at the drop of a hat. I also have on hand instant soup( in the packets) there are times it taste gourmet. Small packets of instant cocoa, A good supply of cliff bars and energy gells as well as dog food set aside. There is a ton more stuff but those are the highlights I can think of ( of course candles) This is just day to day stuff and the way I have the household set up. All of this gear will pack into 2 of our kayaks easily.
I've been reading a little bit of a survivalists' blog lately...very informative stuff. I've also heard your Bail Out bag referred to as a G.O.O.D. bag (Get Out Of Dodge). I worry about something 'big' happening, and not just a bad storm or something.