Hi,

Here is a little post that describes how you can use GTSpotter to navigate through the file system: http://www.humane-assessment.com/blog/searching-file-system-with-gtspotter/

If you combine this with the GTInspector ability of allowing you interact with the file references, you get a pretty powerful tool: http://www.humane-assessment.com/blog/browsing-files-with-gtinspector/

This is probably the simplest 3-minute demo you can give to a newcomer :).

Cheers, Doru