We all know the drill by now. Wash hands frequently with soap and water, to the tune of the “Happy Birthday” song—twice—to kill microbes. Always carry hand sanitizer, with at least 60 percent alcohol. And keep hand cream handy, to prevent dry, cracked skin, after all that washing. Choose one that is rich in nut or seed oils, to not only hydrate, but also nourish the skin. Here are some new discoveries!