Hyberbolic Software (http://www.hyperbolicsoftware.com/) has released Tidy Up! 2.2.6, the latest version of their disk, file and folder processing utility for Mac OS X.
Tidy Up! can find duplicate files and packages using any criteria. Version 2.2.6 adds automatic installation of the new version when available and fixes some bugs.
Tidy Up 2.2.6 requires Mac OS X 10.5 (“Leopard”) or higher. Upgrades from version 1.x are $20, and upgrades from version 2.x are free. For new users the cost is US$30 for a limited time.