eBay has a $20 coupon which seems to work on every item Coupon is active as of today, June 20, 10PM ET Anything under $20 is free though I'm not sure if you can do it more than once. Pick any item than is $20 or less and under the price box you'll see: Pay only $0.00 [ Show me how ] You'll earn $0.25 in eBay Bucks. See conditions Edit: I needed a battery and gave it a try. Unfortunately it doesn't work as advertised. The payment went through and was charged the full amount.