As long as it doesn't require any additional effort, people seem happy to embrace eco-friendly ideas. So to free people from having to remember to turn a light off when it's not needed, Randy Sarafan created this handy lamp that turns off automatically whenever you close your eyes.

And in case you were wondering, yes, it's just about as annoying as you'd think it would be.

The premise is sound. And it seems to take the idea of using motion sensors to automatically turn off lights one step further. But something tells me people might not be so keen on attaching a series of electrodes to their face, as the mechanism appears to be triggered through muscle movements. It also seems better suited to the bedroom, automatically turning off the lights when you fall asleep, instead of continuously flicking them on and off everytime you blink. Although, drifting off to sleep with electrodes stuck to your face can't be comfortable.

Because Sarafan also happens to be the technology editor over at Instructables, it's not surprising that he's also created a step-by-step guide on how to build your own blink lamp. But you might want to just skip ahead to the last step which includes this dire warning: "Connecting your face to a DIY device that is plugged directly into the wall is a terrible idea. This Instructable was for entertainment purposes only. You should never replicate this." Probably a good idea to heed his advice. [Instructables via Treehugger]