I like to think I'm as green as the next girl. I never throw clothes away, I walk or take public transport everywhere, I recycle my beer cans, and I'm always shouting at my housemates to turn the heating off and put jumpers on, rather than lounge around the house in strappy tops in February. But I think this gadget is a little too green for me. Or is that a little too illogical? Hmm...

Anyway, let me present ...