I'll drink anything that is not carbonated, does not contain aspertame and tastes good.

So what's left??

Crystal light (with splenda), they do sell this but it's in a bottle, not the powder.

I just ordered some beverage granules from some Splenda website last month.
We got some muffin mix, some splenda jello kind of stuff (Alan LOVED THAT), and I made the cranberry beverage drink mix.

Very good.

Kind of like Crystal Light. They have all flavors.

Not too pricey either.

Oh, about the tonic water, do they make one that is sugar free??