Did your OS X system ever crash and lose some data, since one of your volumes - hopefully not your boot volume - did not have enough free space?
Mounty (status item) checks your local volumes and warns if some volume is short of free space.
Mounty is a free application... Use it at your own risk without any warranty!
- Force Finder to mount volumes
- Force Finder to scan for new applications and services
- Minor changes, simply fixed the download location bug