If you’re a Vista laptop owner you definitely want this application installed on your machine.

It’s a Vista Battery Saver !

What it does, is when you switch from A/C to batter it will disable Sidebar and Aero (all of this is of course configurable). I can squeeze out over 40 minutes more of battery time with this little application. Also, this is and open source project written in C#. Here’s the code. It’s a very interesting read.

Hope it helps.