I agree with what the above commentor said but if you take your son and SO then it'll show as you're purposefully excluding them so you can have your full family(in their eyes). The best thing is to ask SK if they want to go. This is unfair on them. It's not their fault that their parent is taking them on a vacation. Also while I agree with what the above commentor said, the "ours" kid has a whole lot of advantages to compensate the gifts and tips. The SKs have to split half their lives with each parent while the BK gets both parents together and in love. The SKs don't get to have family time with just their parents , the BK does. The SK doesn't get to be alone with the parent, the BK does when SK is gone. The BK has full attention when SK is gone but the SK always has to share it with BK when there. The BK doesn't have to switch houses , the SK does. So all in all a few extra gifts and trips don't mean that SKs have much more than BK. So I kinda agree but disagree with how the ours kid should be getting more since he has only 2 parents. So do the SKs. Uts not their fault that their parents divorced and extended their families. The SKs usually suffer more so to me they do deserve equal as BK. Excluding an SK is a jerk move.