Do couples need ‘date nights’?

Prime Minster David Cameron recently suggested that couples should try and have regular ‘date nights’ to keep the communication and spice flowing in a long-term relationship. Lucy Mangan tells Woman’s Hour’s Jenni Murray why she thinks this is a terrible idea and would much rather read a book, while comedian Justin Moorhouse admits he and his wife regularly smooch over a midweek spaghetti carbonara.