Art walks, Food fairs, fashion, and film. It's fall in LA, and for another weekend we can forget about our lack of playoff-worthy baseball teams and professional football and take advantage of our final three weeks of Daylight Saving Time. The fun begins tonight, so you best start the weekend now. Downtown Art Walk Thursday, Noon - 9 p.m.: On the second Thursday of every month, Angelenos stroll up and down Spring and Main......