I am having an issue on my wife's MacBook Pro running OS X 10.10.5 (late 2012 13-inch retina). The hard drive is only 120 GB, but the "other" category in the About this Mac storage option is taking up over 81 GB. I've tried following a number of turorials online including cleaning up mail cache, downloads, browser cache, etc. to little avail.
My question is, is this expected? I feel like 81 GB for other storage is a bit excessive, but I can't find any files large enough to indicate this should be an issue (including browsing almost her entire user directory and looking at folder sizes).
Anything you could offer would help.