San Franciscans have stirred ghoulishness, eccentricity and a dash of political satire into the cauldron this year when it comes to Halloween decorations. Here’s a list of streets and neighborhoods to check out on or before Oct. 31. Waller Street, particularly the stretch from Scott Street to Steiner Street in the Duboce Triangle, has several Halloween-decorated houses. From ghosts bursting out of windows to spiders […]