Walmart continues to offer the Duck Brand Attic Stairway Cover for $31.11 $29.26. (Amazon charges the same, although it's currently on backorder.) Choose in-store pickup to dodge the $5.99 shipping fee. (You can also pad your order over $35 to qualify for free shipping.) That's tied with our mention from last week and the lowest price we could find by $5. It provides better home insulation by sealing attic openings up to 25.5" x 54".