Today only, Ralph Lauren offers its Ralph Lauren Denim & Supply Men's Gingham Ward Shirt in Manning Plaid for $29.99. Coupon code "RLSUM40" cuts it to $17.99. With $5 for shipping (select "Economy" shipping at checkout), that's tied with our mention from three days ago, since expired, and the lowest total price we could find for this shirt. It's available in size L and XL only. Coupon expires August 12.