I think inventions are getting increasingly clever, and perhaps with Obama's "Green Initiative" more environmentally-friendly as well. This latest invention can serve as an example of both: a re-chargeable battery with a catch.....this one re-charges with your computer's USB, which means a few things.

First of all, you save money over the course of the battery's life-it lasts for roughly 500 charges and the AA battery pack costs about $18 per pack. (Although AA batteries are currently the only ones available in from Moxia Energy, the company has plans to expand into other popular battery sizes as well.)

Secondly, these batteries are definitely a "life-saver" for the environement as approximately three billion "single-use batteries" are discarded every year.