If the "Apocalypse" does arrive, you need things that do not rely on power, do not inhibit your ability to move and help you survive. Most of the things mentioned on here don't really meet that criteria.

Instead of downloading torrents or building power generators why not go out and get some survival skills- outdoor medical training, wilderness survival, etc. Then practice these skills- go out camping, hiking, learn to cook in the wild, learn to forage, get in shape. Learn how to use firearms, buy some firearms, have a contingency plan for yourself and your family.

Or you can just sit at your computer and download torrents...