I'm kinda on the fence about this one... I'm not divorced, but DH and I are both the adult children of divorced parents.
Is there a reason you feel that you should (or even want) to invite the ex?
Personally, I think there's nothing wrong with taking your kids on vacation and enjoying your time alone with them. And I don't think you should feel that it's necessary (out of guilt/pity/etc..) to invite the ex. Soon enough, your kids will be older and off to college. I say, make the best of your time alone with them and don't feel guilty about it.
Your ex can spend quality time with your kids without it having to be "on vacation"... There's no telling how much fun they could have just around home.
Is there a reason you feel that you should (or even want) to invite the ex?
Personally, I think there's nothing wrong with taking your kids on vacation and enjoying your time alone with them. And I don't think you should feel that it's necessary (out of guilt/pity/etc..) to invite the ex. Soon enough, your kids will be older and off to college. I say, make the best of your time alone with them and don't feel guilty about it.
Your ex can spend quality time with your kids without it having to be "on vacation"... There's no telling how much fun they could have just around home.
, so I don't know if my opinion is a valid one. That being said, I would invite him. DH and I see these horror story divorces in people we know, and have lost some friends that way. They treat their children as possessions and ammunition, and it is really disgusting. 
"The kids shouldn't get to do those kinds of things if she isn't there with them"
Of course, that was just our experience. Your ex may be completely reasonable and not a selfish jerk. lol
and taking advantage of
....he may loose his job and will have to take a "staycation" with the boys this summer. I figure max cost to him would be about $400. Not bad for a week and half vacation right?
