20. Know What Your Kids Are Doing Online
Even video games can be a social zone these days. Keep devices where your children are interacting socially in common spaces in your home so you can pay attention to your child's reactions. Likewise, monitor which apps and sites your child is visiting and make a rule you're allowed to see their public profiles, if they have any. The more you can stay involved, the more likely you'll have success in keeping cyberbullying from spilling into your home.