It's December which means it's time to break out the Christmas tunes and get into the holiday spirit. I have several hundred Christmas tunes in my library and to keep them from playing during "Party Shuffle" sessions throughout the year, I de-select the check box by each track. Well, it's time to select these boxes so the tracks will be played as iTunes progresses from track-to-track. But who wants to individually select hundreds of check boxes? Not me. Today I discovered you can control-click (command-click on Mac) one check box in your track listing and all check boxes will be affected. Since this affects all the tracks you are currently viewing, you may want to create a smart playlist with just the tracks you wish to modify.