Macy's takes an extra 20% off select men's, women's, and kids' apparel, shoes, and accessories via coupon code "BTS" as part of its Back to School Sale. Pad your order with a beauty item (they start at $2) to bag free shipping; otherwise, shipping adds $10.95, or get free shipping with orders of $99 $25 or more. Deal ends August 12. A couple of best bets, with prices after coupon: