The 84" Grommet Top Thermal Insulated Blackout Curtain Panel Pair drops from $69.99 to $49.99 as part of Overstock's Cyber Monday Sale. With free shipping, that's $6 less than our previous mention and a new all-time low by $2. Available in eight colors (beige pictured) these grommet top thermal-backed curtains boast the ability to reduce heating and cooling costs, block out outside light, and reduce noise. They are well reviewed with 4.7 out of 5 stars from over 610 buyers. On a personal note, I have these and they're great: they even block out Manhattan street light and noise. There's no sales tax (except UT).