Everyone says, "They grow up so fast," and now I'm starting to believe it. My baby turned four years old on Saturday! I splurged on a custom balloon for my number-loving birthday boy, and we ran around with it at Rodgers Park. Also, a new birthday watch. The wristband is a road featuring race cars with numbers! We hosted a party at home on Saturday, and it was the nicest thing ever, spending Joseph's actual birthday with a bunch of our friends. Joseph, who never gets to eat cake, got a giant slice of chocolate mousse cake. You only turn four once! Previous birthdays here: three, two and one!