While checking out of Grosvenor House hotel located at the Mayfair district of London, 47- year old Asim Dalal, managing director, The Bombay Store was intrigued by the hotel’s card key — a plastic key-shaped card. It had the number of the room and the hotel address carved onto it, which shined brightly. He pocketed it and added it to his collection of around 300 spare card keys, collected from around 15 countries all across the world. Even today, this key reminds him of his stay in that hotel room and the fond memories associated with London city.