[roofus]

The best article I have seen on battery life:

How to Make Your Cell Phone Battery Last Longer - wikiHow

[NJBlackBerry]

I agree with this if one has a cell phone. But it falls apart if you use e-mail and other features where it is not feasible to switch Data features off and on.

Turning off Bluetooth and WiFi when you are not using them are clearly obvious winners.

[berryboozer]

thanks roofus. This is a great read