I occasionally watch the show Doomsday Preppers. While some of the participants are extravagant in their ideas & actions, others are very inventive in being able to live "off grid".
I'm wondering what you would consider doing to a build to make it through a prolonged power outage, other bad scenario, etc. The obvious are solar panels, a wind turbine perhaps, back-up generator (not sure if you can somehow hook that on to the batteries of the solar system surplus), a tornado shelter for those of us in the Midwest. I also would like to collect rain water and have some way to filter it. What else have you done in your builds that was perhaps "out of the ordinary" in this regard? Thanks!