At the end of the show when Dorothy has just broken up with her "clown" boyfriend, she pulls a handkerchief that is connected to several other solid colored handkerchiefs out of his pocket and walks away. The handkerchief in the two shot she is touching is white. But, when the camera switches to the wide shot, the handkerchief she is touching is light blue.
When Dorothy comes home early to meet with Ken, she hears the doorbell ring, picks up her black purse, and walks into the living room. When she enters the living room, she no longer has her purse in her hand or on her body. After she finishes talking with Ken on the couch, they decide to get dinner and she walks behind the couch to the back table and picks up the exact same purse, even though she never brought it with her into the living room.