I have looked at some of the BoB threads here, and it seems to me that a lot of people are including things that might be useful if they were in a wilderness setting, but for most people trying to evacuate an urban area, are those items really useful, or will they just be dead weight? For example, does one really need fishing line, fishing hooks, a saw, signal mirror, and other wilderness survival gear? It seems like a lot of people are not really planning for the type of evacuation that is most likely. Also many people recommend carrying a lot of ammo. I can't really see why I would need 10 spare loaded mags for my AR. To my knowledge, there has not been a single person since the Civil War that would needed that much ammo during a disaster, and that would include the Watts riots of the 70s, Rodney King riots, Katrina, etc. For a temporary evacuation, it would seem to me that a lot of those items could be dropped, and the load lightened.