The main point is that she should not have access to your personal calendar. And the very idea of her signing up the girls into more things to do WHILE THEY ARE SUPPOSE TO BE WITH THEIR DAD (which puts you spreading long hours in the car transporting them to some activity you didn't have a say about).

I mean, I would be very cranky if I had my kids for only a few days out of the month and my xs had the nerve to want to prearrange what we would do on my time. Frankly, I would be the one p!ssed that she even thought she should still have access to my personal calendar. But I realize I am not the most talented in how to state some issues. So maybe you can get a better idea from everyone's imput.

It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!