Solarjo's Power Purse is amazing for three reasons: 1. It's built with solar panels that store energy inside the bag. 2. It comes with USB ports to charge iPods, cell phones, cameras, whatever, so you'll never have to say, "sorry, my battery died" on a night out. 3. It actually looks like a cool, presentable accessory - especially when paired with Balenciaga, Hussein Chalayan, Prada, and the other designers embracing the Future Perfect aesthetic that's invaded the runways. The purse hasn't been mass produced yet, but if you're interested, email the company and tell them you want on the wait list.