Edited December 16, 2019
at 02:32 PM
Target has the Nordic Ware Baker's Half Sheet for $6.99. They are $10 at Walmart and $22 for 2 at Amazon. These are Wirecutter's favorite half sheet.
I was able to get them to honor the price in store by showing the app price. It may be preferred to select them in store since occasionally a sheet has an imperfection. My store had dozens.