I’ve been interested for a while in putting virtual machines into version control - I haven’t tried it yet as I’d imagine most modern vcs would grind to a halt. The idea is - keep your machine in something like git (I hear it’s the most space efficient - svn would be a definate nono), and keep a copy on one of the large usb sticks that are now available.
I’ve been using delicious for a while, but have started bookmarking all my forum posts in there, it should be a lot easier for me to find out whatever I was talking about in the future 
Saw “Colossus, The Forbin Project” last night; The U.S. gives an AI control of all it’s nukes… what could possibly go wrong?
Shortly after they turn it, on a message comes up “Warn: There is another system”, it turns out the Russians have done the same thing, and the system wants a link. I won’t give away any more of the film, which has some seriously cool looking 70s tech in it (and obligatory wooden panelling everywhere). I did like the message in the “computer” writing of the time, so made an version in Inkscape, as it would probably make a cool T-Shirt.