The #1 Best eBay Selling Tip in the History of the Universe! 08/09/2016 By Greg Perry Leave a Comment Tell Your Friends (Enemies Too!)Facebook0Twitter0Google+0Pinterest0LinkedIn0 This is the most important tip you can know if you sell on eBay (or Amazon or anywhere else!) You must know your Buyer’s favorite word. And nope! It isn’t “Free!” Watch this quick YouTube video to boost your sales and make a lot more moolah!