For Prime members only at Amazon, buy
two Amazon Dash buttons for
$9.98 and get a
third Amazon Dash button for
free. (The discount applies at checkout when you add three buttons to cart.) Even better, you'll bag a
$4.99 Amazon credit after your first press for
each button. (That's $15 in credit total if you press all three buttons.) Plus, these orders receive
free shipping. Assuming you'll use the credit, that's essentially a $5 profit, although we saw the buttons for a buck each with the $5 credit in July. Deal ends September 17.
Note: Pressing the button will place an order for the button's designated product.