Yoink provides your Mac with a place where you can temporarily drop your drag-and-drop items. It looks to be a nice boost to your productivity. Check out the demo video on their site.

By temporarily taking your dragged files and thus freeing your mouse, you can more easily and comfortably navigate to the target of your drag – be it a window, a space or a fullscreen-app.

Source: Yoink – Simplify drag and drop on your Mac