ok this is what I do because I drink iced coffee and don't like just a regular cup of coffee over ice. Night before I put a Starbucks Via pack in a bottle of water, add my sweetner, then shake shake shake. Put it in the fridge overnight. Next morning I take it out and pour it over ice with milk (soy) that I bought from the resort and keep in my fridge. It's not a fancy starbucks drink but it's the right taste and it's a hold over till you can get to starbucks (DTD, MK, Epcot) for foam/whip/macchiato/chia whatever.

The resort stores sell every thing from soy to fat free milk to whole milk. You can get sugar or sweetner in the QS and I use bottle of water if I bought a case or I save a empty water bottle and then buy a gallon of distilled or drinking water from the store where I got my milk. Don't use tap (high sulfer content and it can affect the coffee, I'd suggest you use it for the regular coffee as well.) I have done this for the past 3 or 4 years, when traveling or at Disney.