With weather not posing a problem, shoppers flocked to their neighborhood malls and stores on Saturday to finish or, in many cases, begin their holiday shopping. According to retail analysts, Saturday is expected to be the busiest shopping day in the shortened season. And with just three days remaining until Christmas Day, many are finding deep discounts as retailers try to trim inventories. And it’s not just people getting presents under the tree. Leah Goldade of Lulu and Luigi’s Pet Boutique says business is brisk.