Here's an idea,

Solar Energy Collecting Wallpaper/Paint

To help – Collect power whilst remaining non-intrusive.

Sparked by One Down on 1 February 2010. (4 comments)

Having a log for electrical systems

To help – Prevent false alarms. Say you're working one day, and then the fire alarm goes off for no reason. Of course, you head outside, wait for a couple of minutes, wait for the fire department to come and say "it's OK to come back in" and then whoever is in charge of the building or even possibly your...

Sparked by Connor on 24 January 2010. (6 comments)

Laptop and device power buttons that glow colors to reflect battery level

To help – Inform users the remaining battery life of their laptop and other mobile devices without the user turning "on" (or activating) the device. Also alleviates the complexity of finding out remaining battery power in many device UIs.

Sparked by long.zheng on 13 December 2009. (38 comments)