In my Indigo work at the moment, I seem to be spending as much time in an XML editor as in a code editor (if not more sometimes). I went to a part of a config that I wanted to comment out and out of habit pressed Ctrl-K Ctrl-C ...
Wow! it worked! As in fact does Ctrl-K Ctrl-U
Hey, I don;t know this could have been in VS.NET for years for all I know but I loved it as it was just so unexpected