I find that when I don't have anything else going on (which I guess is just a nicer way of saying "when I'm bored") I pull up DTF. If there aren't any new replies to threads I'm in, I check all new posts. Usually I can find a subject or two that I might have passed on before that I'll check out. If I still have time, I'll just start browsing General or General Music, again looking for subjects I passed on before. Eventually something will happen in real life, but man, DTF has kept me sane quite a few times.