While it might be infinitely more reasonable to sleep for as long as possible on Labor Day, we plan instead to be standing at the corner of Union and Battery at 8:00 a.m. for the start of the Metromint Giro di San Francisco. Bike races are typically held in faraway places like Brisbane or France, but this is a race right here in the city. Also not to miss: the Twilight Criterium on September 13,......