TUAW Tip: open two separate iTunes windows
This isn't the most advanced tip in the book, but I found the trick darn handy last night while performing some badly needed library cleanup. In iTunes, you can open a second window for almost any item in your sources list on the left - the iTunes Store, a playlist or - interestingly - even a folder of playlists. While your library items such as Music, Movies and TV Shows are unfortunately exempt from this convenience, you can simply double-click any of these items to open them in their own window, minus a source list of their own. This is great for having easy access to playing music in one window while you work in another, perhaps cleaning up files, like I was, shopping at the store, or building a new playlist.
