There are many situations in which knowing CPR (cardiopulmonary resuscitation) can mean the difference between life and death. Now it’s easier than ever to learn CPR. Watch the DVD in the new CPR Anytime for Family and Friends kit, developed by the American Heart Association ($30, www.cpranytime.org), then practice on the inflatable mannequin. In just 22 minutes, you’ll learn how you could save a life.