As scary as the thought may be, one day your kids will be old enough to stay home alone after school. When that day comes, you don't have to spend the last few hours of your workday in constant worry about how your kids are doing. Thanks to security features available today, you can monitor and assist your kids even when you're away. Of course, the first step is to make sure your kids are old enough and responsible enough to be home alone. Then, consider using these home security features to keep them safe.