Hanes via eBay takes an extra 20% off orders of $15 or more via coupon code "JUSTHANES". Plus, all orders bag free shipping. Deal ends January 8. A couple of eligible best bets, with prices before discount:
Hanes Women's Cool Dri Polo Sport Shirt for $11.11
Hanes Men's Boxer Briefs with Comfort Flex Waistband 5-Pack for $14.45 (pictured)
Note: A maximum discount of $100 applies.