Columbus sailed the ocean blue in 1492, and in 2015 shoppers can celebrate his excursion with deep price cuts at one popular department store. Ahead of the holiday on Monday, Macy’s has launched its Columbus Day Sale, and the deals are big. Customers can take an extra 20% off select sale and clearance-priced clothing, an extra 15% off select sale and clearance-priced jewelry and shoes or an extra 10% off select sale and clearance-priced electrics and electronics. Plus, online shoppers can snag free shipping on orders of $75 or more (excluding furniture and mattresses).