Overstock.com drops the Grommet Top Thermal Insulated 84-inch Blackout Curtain Panel Pair, from $64.98 to $49.99. With $2.95 shipping, that's $21 less than our previous mention and within $1 of the lowest total we've ever seen for these. Available in ten 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 448 buyers. There's no sales tax (except UT).