As any parent can tell you, parenting is a full-time job . It may not pay the bills, but it sure takes a lot out of you. It doesn't stop when you go to sleep, or when you're watching TV, or even when you're on vacation. You're a parent 24 hours a day, 7 days a week. You don't get to choose whether or not you're ‘on duty’ if you're a parent, you just always are. And for couples parenting together, it's important that you both understand that. Otherwise, conflicts are bound to arise. That's what…