Just a hint for the milk.....it took us a couple of days to figure out. If you purchase the really small cartons of milk at the food court they were about 1.30 each, but you can purchase a quart in the rear of the gift shop for under 2.00. Works if you have a cooler or fridge in the room....or you can finish up a quart at breakfast!
The exact items available for free refills varies slightly from resort to resort but milk is never one of them.
There is a list of everything available at the All Stars at the bottom of the page of the ASMu dinner menu on Deb's web site. One or two items may change at other resorts but it gives you a good general idea of what they all offer.