This is strictly from home.

Some of the motherboards in the last 4 years actually can be polled to determine power consumption. As well, every box I build has only the motherboard, 1 HD, ram, CPU, nic, sound card and video in it. No other equipment is installed. This took my power consumption from 210 watts to about 160 watts per hours once I had the power consumption from the extra drives and dvd writer gone. All of those items are attached via USB in an external case (love the BYTECC ones personnally) and I only turn them on when I actually use. And when I shutdown most times I hybernate to reduce start power consumption but that is small.

I also, changed all lights to CF (waiting for LEDs to become afforable) and all holiday decorations are LED lights. I also work from home 2 days (sometimes 3 days) a week and I open the blinds before I turn on the lighst most days.