Disabled the bloatware and S apps as well, and keep the screen brightness only as high as I need it to be to see in the ambient light. I shut off the auto-brightness. I didn't really do much else and am getting fantastic battery life. I'm at 91% battery after almost 3 hrs off charger and 22 min screen time w/light web browsing and streaming music.
What does your phone say is using your battery up? (Settings->Battery)
I haven't disabled any bloatware yet. But I keep power saving on, and turn off gps, wifi, and Bluetooth. Also, when I'm driving, I'll turn off data. I normally keep my phone in 3G because 4G is a hog. It usually last me a day and a half. I'll try having sync turned off as well to squeeze out a little more juice
Sent from my SCH-I535 using Android Central Forums
Another way you can extend the longevity and life of your battery is to monitor the temperature and voltage of the battery. I use Curvefish's Batterylife app. Temps above 86 F and above 4.0v are generally going to kill your battery faster than if you keep temps and volts lower. Also, frequent charges throughout the day are a good thing so as to not drain the battery too low.