i had to reinstall panther twice a while back because the screen was freaking out. but it left these two folders of "previous systems" still on my drive. so i decided what the heck i'll get rid of them. turns out there were over 180,000 stuffs in these folders. it took like half an hour to empty the trash and it gave me a bunch of gigabytes back. now over half my drive is empty. it's like a gift. just for me.