As stated all water stops have Water and LemonLime PowerAde. The sport drink is a half strength mix. Usually the tables are set up with water then sport drink and except for the mile 24 station are on both sides of the course. In general, water stops are located at miles 2, 4, 6, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,24 and 25
Historically, Cliff Shot Gels are handed out at mile 13 but with the advent of the relay this stop has moved to mile 8.7. The second gel stop is mile 19. Bananas are at mile 14 and 19 and candy at mile 23. Sponges are located at mile 17.5.
First aid stations are located about every other mile and will be equipped for most minor issues. They have Tylenol, bandaids, tape and Vaseline. The Vaseline will be handed out on tongue depressors - late in the race looking like a treat of some sort. Do not eat. First aid stations will also have a great gel called BioFreeze. Its a green all natural gel that works a lot like icy hot. If you use, they will squat into your hand from a container. Rub it in and be careful of your eyes and mouth. At the next water stop spend a cup and wash your hands off. Note that if you take anything more than BioFreeze or lube, be prepared to give your bib number. Its only for follow up if something happens later or post race.
Do not be afraid to use the First Aid folks, even if they stink you on a cot. They are there to help you and if you need them, please use them. Also, do not feel bad about ratting out a fellow runner. I have reported quite a few folks and even walked a couple folks to a first aid station. We are all out there for each other and safety would be one of our primary concerns. I would much rather have a First Aid staffer yank me aside for a couple minutes if I were not looking good than to allow me to get into danger. (though I would probably not be happy at the time).
Other logistics
There are little green rooms in the staging area, at the start corrals and at every aid station along the course. In addition, there are bushes just after the start line to the right. Real Restrooms are
Epcot -
Just before the gate course left and right - though note a heavy spectator load may prevent you from getting over.
Just inside the gate course left and right. Course right will be crowded I have never been course left
The Odyssey Building Course left on the other side of the pond. Also the one behind Innoventions may be open, though it may be folks making their own
Finally - Norway, last chance as we leave the park. There are a few green rooms just behind the fence
TTC - As we cross under the eve there are real facilities course right behind the building. Again, spectators are thick.
MK - Halfway down Main Street, Course Right
Tomorrowland, just after we turn left on course left
As we enter Fantasyland, we run by the Teacups... The next room is behind Pooh (so to speak)
The final one I am aware of if behind Country Bear Jamboree. There is another at park exit but cast members seem to be blocking the pathway heading there off, plus there is an aid station just around the corner.
AK -
As we enter the main part of the park, we turn left onto the party in between Africa and Asia. Just there on course left is a facility. If a hot day its AC is a welcome relief.
There is another one - though not obvious - near expedition everest.
DHS - I have never really seen one but know there are facilities on either side of Commissary Lane. Note that the park is in full operation while we are going through and this is a really narrow path. I would not plan on seeing or finding these.
Hope this helps
What have I gotten myself into?
Anyone else feeling less confident as the big day approaches?
I just keep trying to picture that Mickey medal around my neck! 
