Recycle your old flip flops and you can earn several great Old Navy Coupons, courtesy of TerraCycle.   For each 25 reycleable pairs donated, you’ll get an Old Navy Coupon worth a FREE new pair of flip flops plus a coupon savings of $10 off your purchase of $40 or more in-store purchases.  Use the Flip Flop Brigade tab for free shipping labels.  This offer is available year-round. TerraCycle takes many recyclable items.  Check them out!