On this page there’s 4 highlights (view in Baymard Premium) outlining what Costco are doing right and wrong.
(Tip: use the arrows above or on your keyboard to navigate all 577 receipt / order confirmation examples.)

The screenshot was taken on June 29, 2016 and depicts Costco’s Receipt / Order Confirmation. In total, we’ve reviewed 65 of Costco’s page designs. To see them all, visit the full Costco UX case study.