We all know we need to do it. It's there, in the back of our minds... but we never seem to remember. That's right, saving water. Water conservation is something that should be at the forefront of everyone's mind but we all know how hard it is to remember that while scrubbing up in the shower. That's why Paul Priestman has created one of the cleverest little inventions ever! This cool looking pebble gets placed in your shower by the drain and records how long you take your shower. Over time, it progressively shortens your shower time and gets you to conserve water without even thinking about it! You set it once, and the pebble does all the rest of the work. Just pay attention to the color of the dot on the pebble and when it turns red you know you've used too much. The best part about this device? Less than 10 dollars!