If you don't wish to automate the scan and removal process, you can manually perform these tasks, customizing the files you choose to remove. Smart Cleanup scans the entire Mac, including system files (large and old files), the photo library, mail, iTunes, and the trash bin. The $39.95 (USD) program now automates freeing disk space using its optional Smart Cleanup operation. Version 3, released this spring, adds several compelling features. CleanMyMac, not to be confused with MacKeeper, has consistently helped maintain my household's Macs with no ill effects.
