A popular beverage is water that is infused with fruits. This is done with all kinds of fruits and gives the water a different distinct taste as well as adding nutrients from the fruit to the water. Herbs are often used in conjunction with fruits for infusing water as well.
A few ideas for infusing water includes cucumber mint, citrus berry, watermelon basil, pineapple mint, strawberry lemon, mango pineapple, cherry lime, and grapefruit raspberry. You can always experiment and figure out which infusions you like the best. At any rate the added nutrients and the flavor boost are a really healthy way to treat yourself to something tasty.