My wife understands my introversion and that I need time to myself. We have a sort of agreement, she could be a stay at home mom but she also is going to take the majority of the child-rearing, I make and manage the money in our home.

One of the reasons I love working from home is that I actually spend more time with my kids. It's not a chore and I don't have to set aside specific time to do so, it just happens organically.

What has helped tremendously is outsourcing a number of chores. I've hired people to clean my house, maintain the yard, etc and it's really freed up more time. Now I have plenty of bandwidth to devote to family, along with all my other hobbies and intellectual pursuits.