By Tim Johns Click here for updates on this story SAN FRANCISCO (KGO) — As one holiday ends, another is just beginning.On Thanksgiving night, as many were finishing up their holiday feasts, others were already heading to places like Clancy’s in San Francisco.Everyone on a mission to snag one of the best Christmas trees in town.“We have trees all the way from one toot, almost 18 inches – we have trees that get all the way up to 26-feet tall,”…