Ending today at 11 pm ET, USPS via eBay offers $78 worth of USPS Botanical Art Forever Stamps for $63.40 plus $1.25 for shipping via the steps below. That's $15 off and the lowest total price we could find, although we saw the same quantity for $3 less in January. It includes 160 stamps total. To get this deal:

1. View the USPS New Botanical Art Booklet of 10 Forever Stamps for $4.90
2. add 16 booklets to your cart for $78.40
3. select PayPal as your payment method
4. apply coupon code "PREMEMDAY15" to drop it to $63.40