As usual, forget to mention we're using RH7! :-)
Also, just as an example of what we're dealing with, in the
Style Sheets section of Project Manager, we often have "empty"
folders listed alongside the main .css files.
It appears these folders are listed because additional style
sheets are buried within them, but they show in Project Manager as
empty folders that can't be deleted. However, looking at them in
Windows Explorer shows the various files (usually a couple topics
and related files, including the style sheets).
It's this type of stuff - files that aren't being used, files
that would be better off placed elsewhere - that we're hoping to
fix.