When it comes to travelling abroad, a myriad of rules exist to protect the Queen and other members of her family when they fly overseas and some of them are downright unbelievable.
Whether it is bringing their own alcoholic drinks for fears of poisoning or always packing a black dress in case they are required to return quickly because of a death, all the rules are in place for a reason.
And there is one other rule that has been brought in for a very sensible reason and it certainly isn't something that most people would think to pack for a trip.
