How to conserve my iphones battery life?

Getting the iphone 4s next week. How do i conserve the battery life? Like how and when should i charge it? Over night or other suggestion?

Dim the light turn off Wi-Fi don't use too many apps like games turn on airplane mode…

Switchoff it and put it in your pocket…

Turn brightness Way down.
Don't have pages and pages full of apps.
Wait till the battery runs completely down and shuts off to charge it again. It holds a longer charge if so.
Google some other way to conserve the battery. There are many websites that tell you many different techniques.
Hope this helps a bit!