So we have been divorced for 5 years, small arguments keep popping up, am going to propose we go back and make an agreement on the things that might happen in the future to prevent arguments happening now. An thinking about things like sports, camps, trips back to Australia etc. We're amicable, or at least we are most of the time. Need wisdom on things to ask for. For background,I have them 40/60 and they are 9 and 12 with no special needs.