If you like to take a long soak, you probably find the the cycle of water turning from comfortably warm to tepid to cold is frustrating. For sure you can drain out some cold water and refill some water, but it is not only a unpleasant experience but also kinds of water waste. Korean designer Sunmi Hwang, Hyunjoo-Lee & Jiwon-Seok came up with a brilliant and elegant idea – Warm On pebbles. Conceptual “pebbles” Warm On are sensor-fitted heat-radiating artificial stones. Dipping them in hot water, they are able to detect and “remember” its temperature. When the water begins to cool, the sensors are activated and turn the heating system. The water in the bathroom or any other vessel passes through an electronic “pebbles” and thus heated to a reference temperature, which is “memorized” transmitters. So from start to finish you can have the same water temperature without any guilt or wasted water and electricity from “refreshing” the bath. I love this idea, for more useful and environmentally friendly bath ideas visit www.decorplanet.com.