The biggest saver for me has been setting up the "Smart Action" to disable cellular data and background sync while my screen is off. Also I was perusing the Iphone forums since the thought had crossed my mind to trade the Razr for the Iphone 4S, don't judge I said the thought "crossed" my mind. Anyway I saw someone on there suggesting for better battery life to turn off the phone from auto detecting the time zone, which would make sense because that is something checking against the network for time. So in the Android date and time setting I took off the automatic time from the network servers option. Will see if that has any affect on the battery as a whole, with pretty minimal use today I am on 11 hours unplugged and only down to 80% left so for me that is a good day.