Buy a Better Battery
If you think that you’re regularly pushing the limits of your iPod’s playing time, you might consider putting in a higher capacity battery, even if yours isn’t worn out yet. For about $30, iPod upgraders such as iPodResQ (www.ipodresq.com), Other World Computing (www.macsales.com) and Tech Restore (www.techrestorecom) will sell you batteries with a higher milliamp-hour rating than the  stock Apple battery, as long as you have the guts to install a new