Talking to yourself out loud could soon become the chosen method of keeping laptops and smartphones running during long periods on the road.
With batteries often the weak link in computer hardware, businesses could turn to engineers in Canada. Engineers at the École de Technologie Supérieure in Montreal have built a chin strap that harnesses energy from chewing and turns it into electricity.
Many offices are thinking of selling power back to the national grid.
So when your phone is running low on fuel the banal office question: “What have you got planned for the weekend” might actually have a purpose.