Home Depot offers the Reach Barrier Do-It-Yourself Garage Door Insulation Kit, model no. 3009, for $30.44. (Amazon charges the same exclusively for Prime members.) Opt for in-store pickup to dodge the $5.99 shipping fee. That's $3 under our September mention and less than a buck over the lowest total price we've seen. (It's the best deal now by $4.) It purportedly insulates and reduces noise. The kit includes eight 24" x 48" pre-cut panels and 48 adhesive fasteners. Deal ends March 31.