Kernel patchsets to optimize battery life on a Core-i3?

[corrupt]

Hello. I just bought an Asus u35JC laptop and threw linux oun it... It's a beast! Unfortunately, it drains battery very fast (~3hr) even though it advertises "10+ hrs". I know that companies always exaggerate this number, but this is ridiculous. I want to do everything on my end to maximize power-saving.

Powertop rates my usage from 13-18 watts depending on usage.

What I've done so far:
- laptop-mode-tools
- cpus set to powersave
- recompiled kernel with CK patchset (dunno if this actually helps)
- disabled the nvidia 310m gpu and instead using the onboard intel GMA

Is there any specific patchset for the Linux kernel that would optimize power consumption better? Also, is there anything I'm forgetting?

This is a core-i3 370 laptop. Also, I know that this laptop supports Asus's Super Hybrid Engine (SHE), but the only support I can find for this is for EEE's.

here is my kernel config: http://pastebin.com/raw.php?i=Cn779eVM

[Etal]

Intel recomments "ondemand" rather than "powersave" since it keeps the processor running less.

You can read about it here: http://lesswatts.org/tips/cpu.php

From experience, the main source of energy drain is the display, so dimming it to the lowest setting that's still comfortable to read should help quite a lot.