My friend Dennis Lees--a rock-climbing, music-playing, geek-stuff-loving, good-humored, bright, handsome Irishman who happens to be married to one of my favorite people in the world, Stephanie Coster Lees--has started a blog called Not Entirely Necessary. I have been enjoying every one of his posts so far, and I hope you do too. Make comments if you like what you see/read/hear--and tell him I sent ya. This amazing video that he posted of Imogen Heap mixing some acapella music in real time blew me away. I'm in awe. Thanks, Dennis!