Aerofoil extends your Windows laptop batteries life by automatically switching power profiles

but for some reason, right-clicking the battery icon only shows two profiles (out of the three default ones), and somehow that list never includes the particular profile I'm trying to switch to (I have four profiles). It's one of those things that should have been built into Windows in the first place: As soon as your laptop batteries switches to battery power, Aerofoil switches the power profile to Power Saver. (Cue cheesy infomercial music) Aerofoil also switches off Windows' Aero Glass interface whenever it switches to Power Saver mode.