GNOME Clipboard Manager (GCM) makes copying and pasting easier and more productive. It will automatically synchronize the mouse selection (the primary selection) with the clipboard (the clipboard selection) and store the contents of the clipboard, making it possible to go back to a previous clipboard. You can save and load clipboards, edit them, and convert them to another format.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.