As a business owner, the most basic and essential promo of buy one get one free (BOGO) is missing in your features and there is no good way of doing this. I would think all of your customers would benefit from being able to run that type of a promotion. It could be for the same item, or it could be for select comparable items, or even at a category level. This is not a reward. It is intended to be a promotion to get customers in the door.