This is in the one with the cardboard baby that Trey gives to Charlotte. When Aidan and Carrie get into a fight over Pete chewing up Carrie's blue shoe, she insists on leaving the house instead of him going for a walk. When she leaves, she takes her keys with her. After that, there is a scene of her in Starbucks and she's typing away on her laptop. When she enters in the house, she has no laptop, just a small purse and her keys. Where did the laptop come from??