Is there somewhere on this board/site that tells everything you need to know about the refillable mug? I have never looked into it because I don't really drink that much soda, but my DH does and he wanted to know about it. I am leaving in a few days and just remembered. We are staying at POR, no dining plan. If you could direct me or tell me what the deal is (cost, where you can use it, etc.) that would be awesome! Thanks!!!