No BOBs here. I gave them up and reclaimed some much needed space in my truck. I guess my EDC is my PSK and my PSK is my BOB and BOB doesnt exist. <img src="/images/graemlins/smile.gif" alt="" /> In my truck still keep a warm coat (in the winter) a fleece blanket, a couple space blankets, tools, ropes, siphon, tow chain, a fire extinguisher, large FAK and a bunch of other stuff but that hardly makes a BOB IMHO. I'd say its more of a roadside emergency setup. If I were to "bug-out" and have to do some impromptu camping I could do it with my PSK for sure and the entire family could do it with my PSK and a few of the items above which are always present in both mine and the wife's cars.
PSK for me is more of a mini BOB. It's a little larger than the average altoids tin kit since it includes decent sized shelter items. It lives (in a maxped m2) in the truck most of the time.
EDC for me is what I carry every day and it not by any means stuff that I actually use every day. It is what I need to survive by myself (only supports one person) in any urban or rural evironment that I may encounter (not antarctica) for 72 hours minimum.
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Learn to improvise everything.