Custom ROMs & custom kernels/governors, & lowering the minimum frequency of the CPU. Check my signature. Based on ND8 but stripped of Samsung bloat. I've used Greenify and DS Battery Saver in the past, too, but sometimes it's good to take a step back and minimize the micro managing. This time around I've also only been restoring apps through Titanium Backup as I need them, so absolutely only apps I use are installed.
Also, do you turn off WIFI, mobile data, GPS, & Bluetooth when not using them?
[BATTERY] Plasma Battery! 🆕🆒🆓 & wickeddecimalbarwide_colors
Charging still shot
Sent from my Sprint Samsung Galaxy SIII on TouchWiz 4.4.2 with Conquest: Singularity v6.3, Ktoonsez' latest kernel and the latest Philz Touch Recovery.