The official water sponsor of Expo West, Pathwater is not your usual water company. The company's purified water is sold in reusable, BPA-free aluminum bottles. Started by a group of social entrepreneurs who love the California coast and are on a mission to clean up the single-use water bottle mess, Pathwater is striving to change the water business with the use of more sustainable practices. A great initiative considering the average American uses 156 plastic bottles per year and 8 million tons of plastic to go into the oceans annually. By 2050, it's estimated there will be more plastic in the ocean than fish. So at just $2-3 a bottle, we think this is an initiative worth supporting.