Tasha Holloway whirled her shopping cart around the Fillmore district’s soon-to-be shuttered Safeway on Tuesday, as her two kids shuffled behind her. With her cart piled high with flowers, meatballs, mangos, spaghetti, an 18-pack of root beer, and a bag of charcoal, she amassed a vast sampling of discounted goods. On Monday, the day the store launched a 50% off clearance sale ahead of its closure next month, Holloway had an even bigger haul, spending $200 for two carts full of groceries.