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I'm usually a couple of months adrift when writing this Epistle, because of the vagaries of publishing schedules. But this time, as I write this in the October half term that UK schoolchildren have, I'm feeling slightly more appropriate for December as I've been trying to make some Christmas decorations. Actually, I've been trying to make a particular thing, a wooden ornament I made last year after I saw one in a shop. As often happens, I found myself thinking “I could make that”, and discovered that I could, but with two caveats. Firstly, my version was more expensive than the shop bought variety. And secondly, my version was shoddier. I smarted a little at this, and so bought …