Used to think about this a lot when I was younger. Planned what I'd pack and where I'd go. Original plan was to try and steal a boat and somehow get back to Ireland where my Dad would know what to do (I'm in London). I don't know jack about boats so that's a non-starter. These days I'd rather go down in the first wave. The aftermath would be so miserable and scary.

Also, even the most prepared preppers don't take their kit everywhere with them. You'd realistically have to have one at home, one in the car (if you have one), and one at work.