We almost never need an excuse to indulge in shoe shopping, but when it's a secret sale worth clearing your calendar for, we take full advantage. In fact, Macy's The Great Shoe Sale is going on now, and it's anything but a winter leftovers situation. We're talking about summer shoe styles from rarely discounted brands like Kate Spade, Coach, Dolce Vita, Franco Sarto, Betsey Johnson and other familiar footwear favorites for up to 40% off.