HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

You download the Clipdiary program – it saves everything that is copied to the clipboard.

Damn, at first I thought it saved screenshots (as files), but no. It just requires some extra mouse clicks. In general, it could be used, but consuming 25 MB of memory for the clipboard... some operating systems use less.