'Recent Folders' in Windows Explorer Navigation Pane

Mockup:


Not infrequently, I'll be doing some task that involves jumping back and forth, or copying files, between a number of different folders. In Windows Explorer, these directories are often not close to each other, so I have to scroll up and down all the time.

Perhaps it'd be useful if Windows Explorer could (optionally) display a cache of the folders you've recently nagivated or moved/copied files to. Then you could drag files to them, or click them to see their contents in the right-hand pane.

A similar 'Recent Folders' section would also be handy in save and open dialog boxes. So often I have to constantly navigate back to the same directory, each time I save or open something. Some save/open dialogues do provide a button for obtaining a list of recent folders, but why not just include a few those folders there in a section within the default listing?