I recently migrated from PC to Mac and have imported my music library into iTunes. During this process I had to rename lots of files and provide details for loads of albums which didn't have them. Needless to say, this took a long time. Now however, I have a lot of crap in my iTunes Music folder that I don't need and iTunes doesn't use. Things like .nfo files (yeah, I know) album covers and directories which don't contain anything. What I want to know is, is there a way I can get rid of everything in my iTunes Music directory that I don't need?