We have a fridge during our June 3-13th stay. It was indeed a small dorm style fridge. We had in the door a half gallon of milk, plus 3 water bottles. On the base, we placed 4 bottles of gatorade, 2 bottles of water. On the shelf, we had a bag of grapes, a bag of bing cherries, my box of medicine, as well as 2 more water bottles on their sides and a bag of small Hershey bars. In the freezer section we had 2 freezer packs for transporting my meds.
The half gallon of milk was $3.29 while we were there. Pints were $.99. I believe the only water I saw in the Food Court were 20 ounce bottles of Dasani. We stopped at a grocery store on our way in, so we didn't buy any bottled water.
Buses - during our 10 night stay we found the bus system to be OUTSTANDING. I know it is a matter of timing, and yes we were trying to hit the buses at a specific time in the mornings but we rarely waited for a bus. Even as we left the parks, our waits were very minimal. We were traveling with friends who joked that I even had our bus time planned since a bus almost always pulled up as we walked up. The only night we waited as at Epcot, after Illuminations. That wait was a total of 20 minutes and we were on the 4th bus to arrive within that 20 minute span and the line was emptying onto another bus as we pulled away.