...do not tell her what you will be doing with your time with them.
This I don't agree with, but just for my own reasons. I want to know where my kids are. I would expect either of us to tell the other if we are taking the boys out of town for the weekend.
Me 42, W 39, S8, S6, S2 M 11y, A & ILYBNILWY 11/08 Walking away from a bad situation.