With the rising cost of bottled water, new health concerns surrounding plastics and the growing desire to stop using disposables, Klean Kanteen is quickly becoming everyone's favorite line of reusable water bottles. These lightweight, stainless steel bottles are good for your wallet (think of the money you'll save by kicking that $2-bottled-water habit), your body (they're BPA-free and non-leaching) and the environment (no more plastic bottle waste!). Now available in an assortment of funky colors, including a pink option that benefits breast cancer research—and even a sippy cup design for younger children—there's bound to be one that's perfect for you. Prices start at $16.95 for the 18-oz size.