I have put together something I refer to as a Panic bag, and it differs from other types of bags, EDC, Bugout bags, etc for a few reasons. 1. It is the bag you grab, if the world has only ended for you, not society as a whole. If your house catches fire, it may be more important to have all of your identity documents,deeds, titles, cash, credit cards, and a back up prepaid phone than to have a 72 hour bag without those items. And allot of us leave those types of bags in our vehicles anyway so they remain handy. You would not want to keep the contents of your panic bag in your vehicle. 2. While you can and should keep EDC type items in the bag, its main purpose is not to provide everything you need, it should provide the means. Because the panic bag is mainly information based, it should have maps, schedules, and locations. Such as, the nearest soup kitchen, safe places to camp, and meeting places for family and friends. When things go completely upside down, its really difficult to remember even the most basic information, write it down, back it up, and you wont have to worry as much. 3. The panic bag is designed for running. The weight must remain low, and the load must be small. When being chased by gangmembers, climbing fences is difficult with a 72 hour load. If you are alone, and you can't run with it, climb with it, swim with it, and fight with it dont bother carrying it. As a side note, most places wont even allow you to use the restroom if you are carrying a bag too large. When you are sleeping in a homeless shelter when everyone you thought you could count on goes to crap, you will be glad you have that small bag under your Mattress (to wake you up, when people try to rob you while you are sleeping) sleeping with a big bag of camping gear is hard, unless you like sleeping in a recliner. Even moving around gets difficult on public transport, bumping into people, and being pick pocketed is a real concern. The monsoon from maxpedition gets my top pick. You could pretty easily rotate it to your front and use it as a holster. That is, if you havent already sold your glock to buy a cheeseburger and a hotel room. 4. A bible. Sleep is poor man's dinner. And the word of god is the poor man's breakfast.