For me, the greatest source of frustration was trying to work with a willful child when there was something else I wanted - say, to get the child to go to bed so I could have my own time. Just the promise of the time, and feeling that promise slip away, was enough to introduce a whole other element of stress into the encounter.
Carolyn HaxPlan your own vacations when you want to, and plan a suitable combined vacation with this other family when you want to. If they freak out at your planning your own vacations as you see fit, then let them. Bowing to unreasonable demands because someone will make you pay emotionally if you don't is not a healthy option.
Carolyn HaxThe only answer that has any chance against against the information saturation kids face these days is to talk openly with kids, early enough and often enough and unflinchingly enough that you set the precedent of being the safe place they can go to ask their difficult questions. It has to happen starting when they're 2 or 3, and they ask you where babies come from and instead of freaking out and deflecting, you give facts commensurate with their ability to understand.
Carolyn HaxThe sudden death of a partner while expecting a child is so universally understood as awful that I don't think anyone with any other weight to carry is going to get to same kind of sympathy - except perhaps people who lose a child.
Carolyn Hax