I have a Mac Book Air with 120 GB of storage built-in. I accumulate a fair amount of useless files through my normal usage, and I try to get rid of it periodically, storing the files I want to retain for the long-term elsewhere. Today I did my usual purge of videos, pictures, screenshots, documents and other assorted crap and found that my available disk space was still much less than I expected, and it was not immediately clear why. Turns out the culprits were some huge log files from the Apple Mail.app. Continue reading Available disk space shrinking on Mac OS X? Check your log files.