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MattOnce you complete a successful transaction, be open to selling again to that user off ebay - maybe with the invoice you send, ask the user if he would be interested in buying from you in the future, and add the username to a list. Then, before you post on ebay, send everyone the items that you have available. Selling off ebay will save the fees, plus the time consuming task of posting and the concern of not getting the price you're looking for.