U, I'll add my voice to the chorus here. Your youngest is 4. That means you have around 13 years until you're an empty-nester. I want you to really think about that. Your time with your kids is not infinite. Even 50-50 custody means you only see them half of their remaining years in the home. Once they move out whether that's to college or to a job somewhere you will see them MUCH less. So maximize the time you have left with them. Take it from a 58-year-old with two grown kids and one almost out of high school- the time passes very, VERY fast. And once they're gone you don't want to be looking back regretting that you didn't spend more time with them.
You've heard the old cliche' "they grow up so fast!" Well it is completely true, you'll find yourself looking back wondering what happened to those little kids you loved so much. Somewhere along the line they turned into adolescents, and then adults. And you still love them just as much, but they are different when grown. This is really hard to describe but once you go through it you'll understand. Your kids as the "young", innocent, wide-eyed versions of themselves are only here for a brief time. Maximize that time, it is something you will never, ever regret even if you have to fight tooth and nail for it.
