How to save battery (iphone5)?

Basically I've had this iPhone for 4 months only, and the battery drives me crazy. I leave the Bluetooth off, switch the Wi-Fi of when I leave home, the brightness is low, 315 pictures, 5 videos, 180 songs, not many apps, 3G always off, I whatsapp very rarely, all that and I have to fully charge it twice every single day! How can I reduce the amount of times I charge it for to make it once every other day like a normal phone?

Turn off push technology

Here's a tip try putting the phone down

Your headline says Iphone 5 but you talked about iphone 4
Here are some tips, ios 7 weighs heavily on Iphone 4
Here are some extra tips
Close all open apps that you don't need
Turn off push notifications
Turn off all location services you don't need
Allow the battery to run down completely and do a full battery recharge ( do this only once in a long while)