Do you have a plan for starting an empire in the event of a societal breakdown?

I seem to always think about these things on Fridays.

I like to think that in the event of a nuclear war, zombie apocolypse, or natural disaster where technology and law are lost, I would be able to rise to power. Similar to Tina Turner's Bartertown in Beyond Thunderdome. I try to imagine how to prepare for such events. Such as stock piling water and food or weapons in an underground cache. Like everyone thought the guy hoarding old bike tires was a crazy, but now that the world went crazy he is the one running things because he was the only one that had rubber, or something like that. Lets get some ideas floating around.

Edit: on a side note. I also like to think about how I would escape from a masked murderer(Jason or Myers) or zombies.