Sometimes they don't work to good. But her are some shortcuts to keeping kids clean and healthy: http://www.cnn.com/2008/HEALTH/02/06/par.kids.germs/index.html - - - - [Here is an EXCERPT from the website for you] - - - - In these germ-phobic times, it's easy to feel guilty for skipping the kids' bath on a hectic evening or handing your baby's paci back straight from the floor without rinsing it. The dirty truth: It's nearly impossible to keep your kids perfectly clean all the time. Luckily, you don't have to. Parenting.com: protecting your family from germs without going overboard . Washing with soap and hot water is the best way to get hands clean, but wipes'll do in a pinch. Here are nine slacker moves that won't hurt your kids' health one bit (and will save you time): Cleaning your hands with only a baby wipe after a diaper change Washing with soap and hot water is the best way to get your hands clean, but wipes'll do in a pinch, removing most of the germs that go with the poop, says Arjun Srinivasan, M.D., a medical epidemiologist at the Centers for Disease Control and Prevention in Atlanta, Georgia. For more thorough on-the-go cleanings, he recommends following up with an alcohol-based wipe, foam, or gel, which works great on your children, too (just remove any visible dirt on the hands with a wipe first).

Usually with batteries.