If you need the second entrance to the bathroom, you'll be either in Turtle Pond or South Point (Bldg 30-56). There is a map of OKW at the beginning of this thread to you can find the buildings that are closer to the two bus stops there.
DVC has asked members and their guests not to bother with faxing in a request since most of the time they just toss them out when they get them. With near 100% occupancy at Thanksgiving time, just getting near a bus stop should be your main request.
Refillable mug station is at Goods to Go and you might be able to refill your mug at the Turtle Shack, which is open seasonally. Refillable mugs aren't that convenient at OKW and it's much more convenient to fill up your refrigerator with your favorites instead of buying the refillable mug.
I doubt you will find anything Thanksgiving-like at either location, Goods to Go or Turtle Shack. You'll need Olivia's or a food court at a moderate or value resort (or a table service at another deluxe resort) to get something like a Thanksgiving meal. You could order from Publix and have it delivered via Instacart and prepare your own meal in your villa.