They've got this co-parenting thing down!

Ben Affleck and Jennifer Garner finalized their divorce yesterday after a long and often tumultuous three year separation, and how did they celebrate? By taking their son Samuel for ice cream together!

The former spouses have made a committed effort to put any drama or pettiness aside for the best interests of their brood.

"Ben and Jen have been dedicated to making sure their divorce doesn't affect their kids. They want to keep the communication healthy so that they can make decisions together in the best interest of their children. It's been wonderful for Jen that Ben has been so present and involved. She wants to do this right and everyone is so incredibly proud of her for rising above the past and putting the kids first," a source dished to ET.

"Ben has been very open with Jen about his long-term plans to stay sober and all of his counselors and sponsors are encouraging him to keep her involved. It really helps him to spend time with his family because his kids are a major motivation for him to stay sober. They are taking it one day at a time and that's been working. Their family life gets better every day," the source added.

We still wish they had never called it quits!