Jon Bentley enlists the help of comedian Jo Enright to get to grips with three printers that promise to take the hassle out of putting ink onto paper. Georgie Barrat gets her hands on FitBit's brand new wearable, the Sense, which not only tracks how fit a person is, but can also monitor stress and even predict illness. While Ortis Deley delves deep into the tech archives, Harry Wallop reveals a techy way for freelancers to save time and money.