Oddly enough, I actually have/do most of what you mention above. About a year ago I started getting serious about putting everything in order and then building up an emergency survival cache of stuff like tents, sleeping bags, water purification kids, learning wilderness survival, etc.

Also, the only person who knows this stuff is my wife, my parents, and her parents. In addition to not wanting to come off as a weirdo, I also appreciate Op Sec. The less people who know, the better.