WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
HiddenMe - Hide desktop icons with a single click.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Desktop Curtain - Desktop Curtain is a simple tool to hide the clutter on your desktop, and help you focus on the...
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.
Declutter - Cleans and organises your files in Mac desktop automatically