My husband and I were doing similar calculations when we heard the news that we were now joint holders (along with millions of other people) of a Nobel prize.

Of course as well as the money, there is also a medal and diploma. Now when my kids were at school, accepted practice was that any joint winners of a cup got to take turns to keep it on their mantelpieces. So when do I get my turn to display the medal? Alternatively, considering that the journey of the Olympic flame around the UK turned out to be more fun and more popular than I had anticipated, perhaps something similar could be arranged for the Nobel medal so we can all get a chance to look at it? :)