I have not been to Disney World since 1982, but I have thought of what I might do for my trip this summer if I need something like Goodnites.
I was thinking I could probably go to Down Town Disney and get a taxi cab to take me to a local grocery store/Wal Mart/Drug Store/etc. I figured getting a taxi in DownTown Disney would be cheaper than where your staying or where I will be staying (the Contemporary).
Just a thought - - I do not know if it would work or not. Good Luck.