We started drinking more water at restaurants (cause we are cheap LOL) and used the crystal lite "on the go" packs. Some of the mixes didn't mix well in glasses of water with ice or the server would add water when we weren't looking. If you've seen the commercials for the flavored drink mixes in a small bottle "Mio" liquid water enhancer...they are wonderful. We like all the flavors except sweet tea or peach tea. Our favs are Mango Peach, Fruit Punch, Berry Pomegranate and Strawberry Watermelon. They are made by Kraft Foods, buy them just about anywhere. They're supposed to have 24 servings in each bottle BUT again large glasses of water take more. With the cost of drinks eating out one meal pays for the bottle. These have zero across the board, no calories, no fat, no carbs, no sugars, no protein.