/home/.cache folder

After a while of running a *nix workstation or server, the operating system will store files in the ~/.cache folder.

Some of the files stored are cover art images for Rhythmbox media player, the cache of Tracker the desktop search program for *nix.

So it is entirely OK to delete the contents of the ~/.cache folder (not the folder itself).

Afterwards I went from 64.2% of a 94 GB partition to 64%, whatever that is in Megabytes.