1Tree Basic 3.0

1Tree loads drives, folders and files with their sizes (sorted by size), and provides you with the common commands (e.g. Delete, Move to) and a few special commands (e.g. Get Full Path of Resource) for drives/files/folders. So, with 1Tree, you can do the manual disk cleaning work easily.

In fact, it is similar to UNIX/Linux du command, or you can think it is a GUI du tool for Windows.
Features:

Show Folders Size;
Sort by Size;
Intelligent Unit;
Intelligent Decimal;
Common Commands;
Copy Full Path;
Customizable Interface.