Nobody tells you that co-parenting is one of the hardest parts of divorce.
Keep communication businesslike. You are not friends. Short, factual, about the kids only.
Use a co-parenting app -- OurFamilyWizard, TalkingParents, or a dedicated email. Keep a record.
Never speak negatively about the other parent in front of the kids. Your kids are half of that person.
Pick your battles. Not every schedule deviation is worth a fight.
Give the kids permission to love the other parent. Say it out loud sometimes.
What is the hardest part of co-parenting for you right now?