Cleaning up your hard drive!
I have been using WhatSize for cleaning up my hard drive since a while, but if you don't have it, there are alternatives. One that works well is Disk Inventory X. It has a very nice graphical interface, but one thing that is not as good as WhatSize is the time it takes to load Disk Inventory X. It takes a while to calculate the size of files. WhatSize also calculates sizes, but it lets you start going through files while it does the calculations. You can learn more about Disk Inventory X or download it here from MacUpdate.