: If your friend's hard drive is too crowded, cleaning it out will be easier if you can identify the folders that contain the bloat. MindGem's tool will show you which folders, and which folders inside those folders, are taking up lots of disk space. Two caveats: First, the portable version is marked "Experimental," although it works fine for me. Second, the cool-looking, animated graphics work only if your friend has Java installed in Internet Explorer. But don't fret--the data is the same with or without the pretty pictures.

With tools such as these in your pocket, you can be a very popular person.