We set some limits, under $100 we don't need to discuss, it's on whichever parent the kids are with at the time. Anything over we give each other a heads up and ask each other to split the costs. Between college for S18 and the sports for the other two we have some large financial obligations, so we need to split these evenly. We've done a pretty good job of co-parenting in large part because we are communicating again, much like we did for 19 1/2 of the 20 years of marriage! Stick to your boundaries!! especially on the finances!
