I wrote "write the clipboard to a temp file; open it in vim; when vim exits, if the temp file has been written, load it into the clipboard". Pretty convenient.

I wrote "write the clipboard to a temp file; open it in vim; when vim exits, if the temp file has been written, load it into the clipboard". Pretty convenient. Also, (though not, I think, relevant to OS X), binding a key to move content between PRIMARY and CLIPBOARD on X Windows has been very nice.