WinDirStat (Drive Usage Analysis/Treemap Utility)

WinDirStat Home Page

"WinDirStat reads the whole directory tree once and then presents it in three useful views:

The directory list, which resembles the tree view of the Windows Explorer but is sorted by file/subtree size,
The treemap, which shows the whole contents of the directory tree straight away,
The extension list, which serves as a legend and shows statistics about the file types.

* Coupling. Select an item in the directory list: The treemap highlights it; and vice versa.
* Zooming.
* Built-in cleanup actions including Open, Show Properties, Delete.
* User-defined cleanups (command line based).
* Works with network drives and UNC paths.
* 'Create disk usage report' option.
..."

This is another utility in drive space usage and analysis space.

There's another that I've been using for a bit and has become a standard for me, Treesize from JAM Software. TreeSize's Explorer context menu is the feature that has hooked me. Fits easily into my normal routine.

WinDirStat's usage of a Treemap is pretty cool. There are other utilities in this space that also use treemaps, but WinDirStat's combined list/data views with the treemap are very cool.

Also WinDirStat is free and open source...

Now I just need to see if it has any command line options so I can mung an Explorer context menu for it...

(via Larkware - The Daily Grind 561)