Amazon Dash Button + $5 Credit: $2
Amazon.com has select Amazon Dash Buttons on sale for $1.99 + receive a Free $4.99 Credit with First Press. Free shipping.
(Scroll down to see buttons for $1.99)
Note: Limit one per customer. Offer is valid for Prime Members only; to receive the $4.99 account credit, you must attempt to order through the Dash Button by December 31, 2017. Once applied to your account, the credit will be allocated proportionally among all qualifying items in your order.