Okay, whenever I make space (and I'm at the edge of 20 Gigs) and for whatever reason it keeps filling up when I'm doing seemingly nothing. Do I have a setting or some Application thats creating data somewhere? I'm so lost... I ran MacKeeper and I got rid of a lot of clutter and cache which freed up a Gig or two but it still continues to fill up. Any explanation for a Rookie Mac User? Thanks a ton.