Ready, set, go: from the Observer nine days ago: "Olympic costs set to double: Londoners face huge tax rise". Oh, come on. Only double? You can do better than that. Remember the 1976 Olympics? Well, no, you probably don't, unless you're in late middle age. But they were held in Montreal. I'm a Montrealer and our 2006 tax bill is projected to be the year we finally pay off the debts on the games. The '76 Olympics were opened by the Queen, just like the London Games will be, and the city built a big stadium in the East End,...