Costco – Calphalon Space Saving Cookware Set by Rhonda February 9, 2021 *UPDATE* 6/6/20. This cookware set is designed for stacking and nesting in any order to save 30% more space. Select Costco locations have the Calphalon Premier Hard Anodized Nonstick Space-Saving 12-Piece… 0 FacebookTwitterPinterestEmail