One thing that bugged me about owning a laptop was the small tray icon for displaying how much power my battery had left.
Having to hover over it to get an accurate reading is a real pain. And the IBM power gauge is not much better; taking up a fair chunk of my taskbar and is visible even when I am docked.
That is why I coded up my own power meter for Windows 9x/XP/2003. It is a simple meter which has the following features:
It gradually appears as The Power levels drop. The lower the power, the more prominent the meter will be
When you are charging the laptop it will turn green and slowly disappear/fade as the charge increases
The meter appears either on the bottom left or bottom right of the screen; it moves to the opposite corner if you MOVE your mouse over it