http://www.amazon.com/Grayline-40...B0000TQGTA

For $7.17 , Amazon has Grayline corner helper shelf. Although been this price a couple of months, it is the lowest per CCC. I see it $10 on ebay. $7.17 at Wayfair which I think Amazon is price matching.
Grayline 40316, Corner Helper Shelf, White


Style Name: White

• Grayline 40316 9-1/4" X 10-7/8" X 8-1/2" White Corner Organizer
• Great for kitchen, bath, closet
• Holds 12 pieces of Corelle, or 8 pieces of stoneware
• Size 9-1/4" x 10-7/8" x 8-1/2"
• The product is from Mexico
• Great for kitchen, bath or closet
• Holds 8 to 12 pieces of dinnerware depending on style