Extend Your Zune's Battery Life

If your not going to be using your Zune for a couple hours, than you can extend the battery life by holding down on the directional pad and the back button at the same time. Three seconds later it will power down. If you use this method instead of holding the play/pause button you will save some battery life.

The only downside is it will not start up where you left off, and you will have to wait for it to boot up.