Last Call by Neiman Marcus cuts an extra 30% offwomen's apparel, shoes, and accessories. Shipping starts at $5, or get free shipping on orders of $75 or more via coupon code "FREESHIP". Some exclusions apply, including women's designer apparel. Deal ends September 23. A couple of best bets:
OverHalfSale offers this Steve Madden Women's Crew Socks 3-Pack in four styles for $6.99. Coupon code "OHS-28" cuts it to $4.99. With free shipping, that's the lowest total price we could find by $5, outside of the close price below.
Amazon has a similar set in Teal Dots for $5.57 with free shipping for Prime members.