Overstock.com drops the Solid Insulated Thermal 84 L x 104 W Blackout Curtains from $61.99 to $55.79 just through this week. With $2.95 shipping, that's within $1 of the lowest price we've seen to date. Available in twelve colors, these thermal-backed curtains boast the ability to reduce heating and cooling costs, block outside light, and reduce noise. They are very well reviewed with 4.7 out of 5 stars from over 1105 buyers. There's no sales tax (except UT).