Crystal Light makes a deliciously sweet powder that you can add to your water to kick the flavor up a notch. But why spend more for top brand, when Wal-Mart's Great Value brand is of the same quality, but cheaper? http://www.walmart.com/catalog/product.do?product_id=10415732
Great Value Raspberry Ice (single serving size) has only 5 calories a serving, 0g of fat, 0g of cholesterol and 0g of sodium. You add it to a 16.9 oz bottle of water and shake well. The savory, sweet taste of this addition will have you marveling at how quickly you will devour your water bottle!