Your primary camp has to be your home. Leaving your home during the first few days of the shxtstorm is an absolute no-no. You will die on the road before you get to your destination. There will be lawlessness on an epic scale and you don't want to be anywhere near it. Traffic will be catastrophic. It will be anarchy.
As for getting your hands on stuff - fortune favors the prepared - if you don't have it at ground zero your chances of having it afterwards are slim. In the UK - guns will be the problem. You need them, and there aren't any around. Foraging at army camps and police stations may get you a result if we're talking legit zombies, but if it's societies underbelly that's the problem, you will already be out-gunned...