My Ebay store offers many very low cost unique but similar products and I have been trying to increase the quantity purchased. So let's say at Checkout the total cost for a single item is $3 Shipped. When they go to check out, I would like to be able to offer them an additional item for $2 more, 2 additional items for $3 more, etc.. I have tried several things including putting volume discounts in the ads, changed heading in listing to say buy any 4 Items Storewide for $X. I think this would be valuable at checkout as I think some of my items are impulse buys and could increase my sales if customers had option to add more items at lower cost for each item added. I have found most users are not going to the Store because it doesn't render very well on the phones, so they don't really get that they can add more than one items to cart for discounts.
