Whilst disk space is no longer seen as a problem, considering 1GB only costs about $0.20! However, I find it an issue on my MacBook where I only have 120GB of space and it can’t easily be expanded.

Finding hogs could be quite a task. Naturally, trawling through every directory is impractical, so automated tools must be used to find large directories and files. Software exists on most major operating systems to graphically show which folders are large and how large they are.

In 2005, gHacks reported about WinDirStat. This is freeware that shows how big directories are. WinDirStat displays everything in the C:\ (etc) drive, colour coded for the first level directory (eg Program Files or Windows), and on tiers below that it is divided as blocks. This is a easy to use visualisation. WinDirStat runs on all Windows operating systems from 95 (w/IE5) to Vista!

An OS X alternative to WinDirStat is Disk Inventory X. It is essentially identical to WinDirStat. GrandPerspective is another essentially identical option.

Linux users can choose between KDirStat or Baobab.

Another option is JDiskReport is a Java-based piece of software which analyses disk usage using pie charts. Presumably this will work on Windows, OS X and Linux.