As we awaited the arrival of our second child, my wife and I decided that it was time to look for a house. We were renting a small, two-bedroom house that felt close to bursting at the seams with toys, clothes, and the equipment one accumulates when caring for a small child, so the prospect of squeezing in another baby felt a bit too much like a circus act. Plus our lease was running out and we really didn’t like our landlord (a story for another time).