I'm trying to lighten the load on my harddrive. I downloaded Gemini to delete duplicate files. I manually went through my install DMGs that I'm not using. I did have a few folders of duplicate photos and music. Ons of PDFs that were duplicated. Deleted those. I was able to squeeze out 20 GB, leading me to 39 GB available. But as you can see from my Disk Utility - I have 148GB of "Other". What?? Still doesn't seem right. Is there a way I can see line by line what is using up so much space? Files, folders, etc? Does anyone recommend apps that will help me find what they are? I did use AppZapper, but it seems fairly limited and manual. 148GB of unknown files, apps, folders seems a bit much. EDIT---- After using Daisy Disk, thanks to Mike in Kansas, I'm now up to 57.78 GB Free. I saw I had 5-6 iPhone backups in my iTunes. What else?