Everyone knows they should keep a torch on hand in the event of a power outage, but how many of us remember to check its batteries or ensure it's always charged between emergencies? With this brilliant Bulb Flashlight, you never have to worry about such responsibilities, because it's always charged.
At $US45, it's expensive even for LED bulbs, but that's because it includes a built-in rechargeable battery that's always charging and always ready. You just need to make sure you use it as a regular light bulb in a lamp where the equivalent of 40W of incandescent light is adequate.
When the power goes out, you can unscrew the bulb, extend the handle, and you've got three hours of emergency light at your disposal. And if you swap out all the bulbs in your home, you should be set for at least a few days. [MoMA Store via The Gadgeteer]