Walmart offers a pair of Cadenza Microfiber Curtains in Smoke for $9.99. Opt for in-store pickup to drop the price to $7.78. (Amazon charges the same price with free Prime shipping.) That's a buck under our mention from last November and the lowest price we've seen. (It's the best today by $4.) They're available in size 80x63" only.

Update: The price at Walmart has dropped to $7 with pickup.