Looks like there are 2 different codes that offer the same discount..updated.
Macy's[macys.com] offers Extra 30% off select items w/ code FRIEND1 or FRIEND (either one)
*Note, certain items on their site are instead 10% off w/ the code..but for all of the items listed below, the discount is 30%)
Macys has 3-Pack Polo Ralph Lauren / Calvin Klein Men's Classic Cotton T-Shirts or Boxer Briefs on sale. Add 2 in cart for $51 - $20 Off with code "HOUR48" = $31. Shipping is free with $48 purchase or free in-store pickup.