Mac only: If you're quickly running out of space on your hard drive (or backup drive), free-for-today preference pane Squeeze lowers the footprint of large files by compressing any folder — without requiring anything fancy to read it again.
Squeeze runs in the background, compressing a list of folders you decide using an HFS compression method built in to Snow Leopard. The best part is that, unlike, say, zipping the folders, you don't need to do anything special to read the folders — OS X will be able to access them as it would any other folder. You can compress just a few folders or your entire hard drive if you want. And, those files stay compressed even if Squeeze is paused or is uninstalled — so it doesn't need to be taking up resources directly if you don't want it to. Note that already-compressed media will not notice a huge improvement; instead, Squeeze is best used on things like documents or applications (as shown in the above picture).
The best part: Squeeze, usually $US10, is available free from MacHeist today only. The new MacHeist bundle comes out tonight (US time), and we don't know if Squeeze will still be available at that point — so grab it now if you think you might want it. For those looking for more information on the compression method used, check out Squeeze's FAQ.
Squeeze is a free download, Mac OS X 10.6 Snow Leopard only.