Behold the Amazon lists. I don't have it all, but I want the umbrella/flashlight/stun gun combo. Bad.

As you prepare, people may treat you like a lunatic. They're just trying to make themselves feel better about not preparing at all. Go out of your way to mention you'll cut a bitch who comes for your stuff. 

Pro Tip: Make people slightly uncomfortable when you talk about this. You don't want to be their first call when they need shit.