I've always been a bit dubious about eco-gadgets, having an uncle whose house is filled with fantastic inventions that haven't really been that useful after all. But there must be some that are good - what do you have, and what do you like?
I have:
- AA battery recharger: brilliant
- Solar battery charger: totally useless, even in equatorial sunlight
I am considering:
- magnetic 'water conditioning' (to reduce limescale)
- laundry balls
- power meter (so you can see how much electricity an appliance is using)