Arianna Huffington is on vacation with her ex and their two daughters, having a great time.    She is celebrating the relationship she has developed with her ex, going so far as to note the 12th anniversary of their divorce.   It’s an interesting read, no doubt applicable to millions of divorced parents:

The surest sign that my ex and I have reached a better place is a newfound willingness on both our parts to not let our pet peeves get in the way of our having a good time. Even in the happiest of marriages, there are little things that each partner does that inevitably set the other one off. These annoyances are magnified ten-fold when you are no longer together as a couple — which is why making an effort to avoid them is one of the secrets of a good divorce.