Windows Vista sound mixer

Ok, I'm no fan of W.H.Gates, but some things on Windows Vista are pretty cool, while other things really annoy. For example, if you have less than 3 Gigabytes of main memory, for-get about even trying to run Vista, imho.
Mrs. Beisbolfan and I were discussing the lack of warning when the battery is running low. Use to be that you could set some sort of alarm to tell you when the battery is low or critical and what low or critical means. Now, when the battery is low, the monitor just shuts off. No warning or anything. Ok, there may be a warning, but all we can figure is it's a sound and not an alert dialog popping up. We usually have the sound off to avoid annoying each other with the Mahjohg and other noises.
Which leads me to one really clever feature of Vista. The volume mixer, you know, when you click on the little speaker in the systray and click on the link marked Mixer, shows the normal Device setting, the headphones or the built in speakers or whatever, but it also shows sound by application. So, if you have a web page up that has sound, you can mute only that web page. The other sounds aren't muted. You have to try this to understand how absolutely cool that is. It's not something that I would have thought to do or even that you could do, but these designers are well paid for a reason.