Recently discovered Uniblue Machanic a Cleanup utility that is quite impressive. It can be downloaded for free, but there are limits on the quantity of data it will clean. For example it may identify a Gb of junk, but will only offer to remove 500Mb. Can it be run multiple times? Maybe. I decided to purchase it for $40. It helped me easily remove 3Gb of junk, duplicate files, and unused programsoff my MBP..