What does your hard drive look like?
No, I don’t mean a metal block. I mean the inside. No, I don’t mean a needle on some disks (depending on if you have an SSD of course). I mean on the disks (or chips, if on an SSD).
That’s what GrandPerspective is for.
But an even better way of using GrandPerspective. I was using a bit more than half of my hard drive space, but after using grandperspective and deleting the reallybig blocks that appeared, I was able to cut downTunes movies that I never watch anymore.Upon opening grand perspective, you will notice a window. I reccommendyou selecct your home folder, as scanning the Library and System folders will be useless and you can’t delete anything off of them. It will scan, and after you finish it will come out like the below image. The big blocks are files that take up A LOT of space. Smaller blocks take up less space. This gives you a perspective of what is taking up your hard drive space and how much hard drive space it is taking up, hence the name. Click a block to see its path at the bottom of the window. Click reval to open the containing folder in the Finder.
In finder, you can delete the big file then go back into grand perspective and press Command>Option>S to rescan the folder and conquer all of those other big files.
P.S. If you decide to scan your whole hard drive and you see a big block thatis located at /var/sleepimage, that cannot be deleted. It is the image that your RAM is saved to when you sleep the computer.
Also, for PC, try WinDirStat, download from Cnet available HERE.