I made a Bug out Bottle for my wife's suburban out of left overs from my two or three kits. THe most expensive parts were the bottle and the SAK that I put in there. I think that the total came out to around 30 dollars, if I had bought everything new.
I will need to post a list of the items some day, but it covers all the basics and is even easy enough for my wife to use in an emergency. I think the idea of housing a kit in a bottle like that is a great idea as they are very strong and water proof enough to keep your stuff dry until you need it.
Garrett
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On occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use. - Epictetus