This has got to be the ultimate statement that you trust solar gadgets to work the way they say they do! A solar alarm clock that stores light during the day and it still going strong first thing in the morning when it's time to wake you up.
In fact, the clock only requires one exposure to light in order to work for an entire year without the need for extra light, so even if you're trapped in a cave this clock will keep on reminding you when you should be getting up and going to work.
£29.99 at Solar Frenzy
[Via Alternative Consumer]