ClipMenu has been discontinued. Similar apps include CopyQ, which is free and open source. Other options are Ditto, PasteBar, Alfred and CopyCat Clipboard. There's no shortage of Clipboard Managers like ClipMenu, with more than 100 alternatives for Mac, Windows, Linux, iPhone and iPad.
Hover-activated clipboard shelf for Windows. It hides on your screen edge, springs open when your cursor nears it, and lets you drag files and images straight into any app. Free and open source.
Your clipboard, but a grid. Hit a keyboard shortcut, see everything you've ever copied, file the keepers into categories, paste with a click.
