Sep 24, 2010 7:54 AM
The Water Pebble ($10) falls into the kinda genius category. Eco freaks rejoice, this palm-sized device hangs out by our shower drain, sizes up our water usage, and whips our conservation skills into shape. Smartypants inventor Paul Priestman programmed flashing lights to let us know when we should be half way done with our shower according to our original settings. The trick is, it shortens our shower stop time over weeks, so we don't really notice. And presto - we're saving water.