Dr. Weimann recommends showering just two to three times per week, and suggests "limiting bathing to less than 10 minutes in lukewarm (not hot) water to help prevent significant water loss from the skin." Your water bill is a happy co-conspirator.
Use only gentle soaps that are hydrating and fragrance free. Some she recommends are Dove Beauty Sensitive Skin Bar Soap (Unscented) and Vanicream Cleansing Bar.
Apply the soap or cleanser to your skin gently using just your hands. Say good-bye to loofahs, sponges, and washcloths. Those things lock in bacteria and don't actually help you get clean.
When you dry off, just dab or pat gently with a towel. "Avoid scrubbing or rubbing," Dr. Weimann says, "this may further dry the skin."
Moisturize right away after bathing. Dr. Weimann says that thicker, more emollient formulas such as ointments are more effective at hydration than creams, and creams are better than lotions.