The Prince and Princess of Wales have been playing a key part in modernising the monarchy in recent years, sometimes in ways you wouldn't necessarily think about. Nowadays we wouldn't bat an eyelash if we saw Catherine and William taking part in a selfie and it's quite normal for them to sign off messages simply 'C' or 'W'.
However, the Royal Family wouldn't be the same without tradition and the Princess showed early on in her relationship with Prince William that she was on board with this. Back in 2011, Princess Catherine is said to have turned down an unprecedented offer from Queen Elizabeth to join the family at Sandringham House for Christmas Day.
