I love Halloween. And this year, as in the past few, I won’t be at home for all the fun. (And I won’t be able to walk with my friend Vinny through his Waltham neighborhood, looking at the kids in costume, the houses decorated.) Instead, and I’m not complaining, Jay and I will be in Italy, in the town of Portovenere (if all goes as planned, we leave for Venice tonight), where my friend Antonio, whom I have not seen in 25 years, plans to meet our boat and spend the day with us. So I was happy to see that some of my Watertown neighbors have already started to put up their Halloween decorations, including this rather extravagant, inflated death coach. Illuminated no less.