Are you like me, missing the Olympics already? For the last two weeks, I’ve clocked up several medals and many records during my own rigorous couch potato championship. I ran a personal best for the 100m dash from the work computer to the TV, almost every evening. There was another record-breaking jump from the sofa to stand inches from the screen on several occasions, while jumping up and down and managing to shout and roar at the top of my lungs.