During the past week or so I have been ridiculously busy, and with not enough hours in the day I have welcomed the solitude of the wee hours to work on the final edit of my upcoming book. With my head full of France, how could I not take a bit of time out to book a flight to Paris?While I was planning dates for my trip, it occurred to me that rarely a week goes by without someone asking me, 'When is the best time to visit Paris?' The answer is not a simple one. A host of things must be ...