This deal has ended.
Update: This deal is over. Now sold out. Overstock has the Thermal Backed Fresco Blackout Wide Curtain Panel Pair on clearance for $39.99. With free shipping, that's tied with the all-time low. Available in two sizes, these curtains feature an energy efficient Thermatec lining, a rod pocket, and a fresco design. They are well reviewed with 4.3 out of 5 stars from over 75 buyers.