Today we went to birthday party for a friend of the boys, who turned eight. An arty and determined soul, he had spent the last few months building knight's helmets and armour out of plywood, so that his guests could launch a huge battle in his backyard on his birthday. Today was the day - and the battle was fierce. Funny thing is, although the temp has been hanging around -7 or so, it didn't feel cold. We must have acclimatized. Or our brains might be frozen.