If you have more than one child, you're bound to have some sibling rivalry. It's very, very hard for children to have to share us. In fact, when a younger sibling is born, virtually all children worry that they aren't good enough – why else would their parents have gotten a newer, younger, model?

In addition to sibling rivalry, kids can have personality clashes, or clashes because they're different ages and want different things – or because they're close in age and want the same things!

Finally, like other humans who live together, even the most loving siblings have bad days and conflicts. And kids don't have the perspective to know it's not necessarily the other person's fault, or the skills to work out differences.

But your children can be friends for life, and your parenting can prevent and even transform sibling tensions. How?