Unless you’re Cinderella and spring-cleaning is done with the help of some music and mice friends, it’s a pain to dig through your hard drive to dump duplicate files. Visit the Mac Gems homepage for a list of past Mac Gems. Every weekday from mid June through mid August, the Macworld staff will use the Mac Gems blog to briefly cover a favorite free or low-cost program. Editor’s note: The following review is part of Macworld’s GemFest 2012 series.