Ever been writing an email and wanted to attach a file on the desktop? Sure you could use the Attach dialog and choose desktop and find the file, but man, it’s right there on the desktop, just under some windows!
Well it is a snap in Panther!
With the window you want to receive the file on top, simply press F11 to Exposé the desktop. Then click and drag the file you want to drop into the (now hidden) window. While dragging, press F11 again to show the previously Exposéd windows, and drop into the target window!