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GREEN GIZMOS: Kennedy & Violich Architecture, Ltd.'s Portable Light Reading Mat is just one of many gadgets featured in our green gadget slide show. Image: Image courtesy of Kennedy & Violich Architecture, Ltd.
It's not all fun and games. Some gadgets are designed to help measure and curb energy usage, cut down on wasted paper, and clean without the need for toxic chemicals.
See also this year's:
Showcase for Socially Responsible Inventions