Semulov: Your mounted volumes in your menu bar
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For people who work with many volumes connected at once onto their Mac, getting around them all can be a real pain. Semulov is a free software that lists all your mounted volumes from your menu bar. The software appears as a discreet eject icon in your menu bar, with the number of mounted volumes next to it. Click on the icon and a drop-down list of all your volumes, divided by type, will appear. Semulov shows startup and internal drives as well as external ones, disks, disk images, and networks. You can choose to eject volumes individually or all at once.
Despite the lack of proper explanations, Semulov is a very handy tool to show all your volumes at once and eject them in a click. And the best part is, it's free!