This is more of a musing, but in Windows Explorer, and IDEs like Eclipse, I often end up with a file tree that is expanded so many levels deep, I cannot see both the root and the files I'm working on in the same horizontal space.
Is there a better way to represent hierarchy without requiring arbitrary levels of indentation?
edited to add context: I'm looking for a directory/file view panel to go on the left side of an IDE, really.