Walmart offers the Furinno Turn-N-Tube 5-Tier Corner Display Shelf in Black/Grey for $16.60. Choose in-store pickup to drop it to $15.39. (Amazon charges the same with free shipping for Prime members; Home Depot has it from a few cents more with in-store pickup.) That's tied with last month's mention and the lowest price we could find by $6. It features no-tool assembly and measures approximately 58" x 12" x 12".

Update: Amazon offers it in Cherry/Black for $15.50 with free shipping for Prime members, while Home Depot offers it the same with in-store pickup.