I'd make slushies out of any of your recipes
I love fresh limeade (or lemonade) slush: Handful of ice, quarter/half lemon, packet sweetener, water, blend it up good and enjoy! Makes a great drink if you add tequila (salt the rim) or vodka.
Love the iced coffee, too: leftover expresso, 1% or skim, sometimes a bit of chocolate milk or syrup, lots of ice, blend till smooth. Skim makes it more frothy, yum!
I didn't give any measurements because all the ingredients are added to taste. They're all small quantities so, not too bad with carbs.
Water, water, water is by far my favorite and usual drink. One of my other favorite summer time treats is to make popsicles. Sugar-free Jello mixed with sugar-free Kool-Aid of the same/similar flavor and water make popsicles that you can't suck the water out of like ice pops. Very refreshing!
Kris