It makes me sad when I hear parents say their don't like each other. Not to brag (well, maybe a little), but our four kids all get along great and always have. I don't say that to be self-righteous. I don't know just why our family has so little sibling rivalry. We may just be lucky. If it had anything to do with our parenting, here's what we did. Read more Sibling rivalry: Parenting tips to help kids get along