What do you think parents can do to foster sibling closeness and discourage sibling rivalry and jealousy? What did your parents do right or wrong that you hope to learn from?

I'll start. I think avoiding comparisons between siblings is crucial to discouraging rivalry. I also think it's important to teach them that fair doesn't mean equal. So just because child A got a toy worth $25 does not child B will necessarily get a toy of equal value.