We spend $30,000 a year on au pairs to help with our 4 boys. It's worth it.

The Smylie family with their last au pair, Cami. Courtesy of Malia Smylie. Malia Smylie and her family have hosted four au pairs from Spain and Argentina. Each visit was so successful, and the mom of four said she regarded them as her daughters. She spoke about the pros and a few cons, she said, of the international program. This interview is based on a conversation with Malia Smylie, 38, a nurse/midwife-turned marriage coach from Las Vegas. It has been edited for length and clarity. My hus...