Ballard shops will be spilling out onto the sidewalks later this week for the annual Ballard Sidewalk Sale. Starting on Thursday, merchants along Market Street and Ballard Ave will be marking down merchandise for Seattle’s largest and longest running sidewalk sale. Businesses will have deep discounts and storewide markdowns during the sale which runs Thursday, Friday and Saturday from 10 a.m. to 7 p.m. and Sunday 11 a.m. to 6 p.m.