Tide and World Wildlife Fund (WWF) are joining forces to encourage a new eco-habit in response to survey data that finds Americans are looking for more ways to save energy in their daily lives: “wash your laundry in cold water.”  Washing in cold saves up to 90% of the energy in every wash cycle and can save Americans up to $150 a year. Put another way, switching one load from hot to cold saves enough electricity to power the average American home for over an hour.   To raise awareness of the n...