The pound sterling is at a 30-year low against the dollar. It's time to take advantage of it, says Vincent Fournier, portfolio manager at Claret. The latter points out that since the Brexit, the pound sterling is trading under its historical average. In the long run, when the shock is over, the currency will tend to rise back towards that average. Mr. Fournier therefore recommends that travelers who will visit the United Kingdom in the near future should not wait too long before converting their dollars into pounds.