As natural a combination as soap and water might seem, the average commercial bar contains harsh, synthetic detergents that don’t biodegrade, stressing groundwater systems as well as your skin. These silky goat’s milk bars from Indigo Wild are a better bet. Made from food-grade olive and coconut oils, mineral pigments, and lovely essential-oil scents, they rinse off cleanly and are totally biodegradable. Two of our favorites are pictured here: the fresh, herbaceous lavender mint and the lively, citrusy-scented sea-salt bar (the salt provides added exfoliating benefits). You can often find Zum Bars available in bulk, and you can slice off your own bar and save on packaging and price at the same time. Look for these and other yummy, all-natural Zum products at your local natural grocery store, or order from www.indigowild.com. About $5 for the packaged bars.