EMF
100 kW
This might be of interest, or possibly a good idea for a birthday gift. I'd like to keep track of how much power I use to keep my batteries charged for my bike. Then knowing the miles, I could do some ciphering and see how much it costs to use it. But, this thing isn't cheap - 99 dollars!
Of course there is the cheaper Killawatt- but this is kind of nice too.

http://www.computergear.com/electricity-usage-monitoring-power-strip.html

Determine how much energy you use with Power Cost Controller Power Strip
Cut down on energy costs and reduce your electric bill. Simply plug the easy-to-use Power Cost Controller with surge protection into the wall and connect your electronics to the power strip to see how efficient it really is. Large LCD display will count consumption and cost by the kilowatt-hour, same as your local utility. Monitor your electric consumption by hour, day, week, month, even an entire year. Also check the quality of your power by monitoring voltage, line frequency, and power factor. Measures 8-1800W appliances. Now you'll know how much your computer network or home media center really costs! Replaceable 1.5V battery included. (#9888) A ComputerGear exclusive. Item in stock unless noted above.
http://www.computergear.com/electricity-usage-monitoring-power-strip.html