Macy's takes an extra 15% off the Charter Club Classic Pima Cotton Towel Collection via coupon code "SAVE". Plus, get an additional 25% off when you donate to the March of Dimes by adding the Macy's $5 Shop for a Cause Savings Pass to cart for $5. (We assume you'll want to buy more than one towel, and the discount you'll get from orders over $20 will cover the cost of the donation.) Pad your order with a beauty item (eligible items start at $2) to bag free shipping; otherwise, shipping adds $10.95. Sale ends August 13. The deals, with prices reflecting discounts from both the coupon and $5 donation: