Season of mists and mellow fruitfulness. Who has not read the Ode to Autumn by John Keats? If not, you can access it here. I am always amazed that as soon as Kay ends her school summer holidays and starts yet another academic year, nature flicks a switch. The air turns crisper, the trees change colour and there is condensation on my windscreen when I get into the car first thing. Every year it surprises me. On 31 August it is summer, but come September - bang - Mother Nature has done it again.