Haven't seen a post like this on the OT in a while, and the forum is getting stale... So lets have em, what are your hobbies! Things you do to keep yourself entertained and your mind exercised (sorry, this is excluding video games, reading books, following tv shows, those aren't hobbies, they're pass times).
For me I thoroughly enjoy circuitry. I love analyzing, designing, and building gadgets. I also enjoy building and fixing things, but being a poor college student, who has a severe lack of tools, this hobby is much more difficult to do.