Have you tried to keep things amicable for the kids?

Growing up, we had friends who had separated yet remained really close because of their two daughters. I used to really admire them for their maturity and have also recently heard that they have just bought a house together. Sometimes it can be incredibly hard to keep things friendly particularly if one partner feels they have been treated unfairly, and then it can be hard when either party begins a new relationship. 

If a split family is what your life is, how have you managed? Are you and your ex still friends, or trying to appear that way for the kids?