Amazon currently has this 2-Pack AmazonBasics Silicone Baking Mats that fit a half sheet pan for just $8.52 – that's just $4.26 each!
Or even better, you can get this 3-pack AmazonBasics Silicone Baking Mats (in 3 different sizes) for just $9.13 or $3.04 each.
Shipping is free with Amazon Prime or a $25+ purchase.
This is one of my favorite baking tools! No need for oil, cooking sprays, or parchment paper. Plus, it keeps your pans looking nice for much longer and makes clean up a cinch!