I think Paste is one of the best clipboard managers at the moment, not to say the most beautiful one. It can store text&files, and it gives you nice visuals to select the right thing to paste. I found it useful to move files between windows/apps. It feels that it might change my workflow for the better.

It was hunted before: http://www.producthunt.com/tech/... Paste is pretty cool though. Using it for a few weeks.