I like to add MiO water enhancer (or store brand) to my water. It's the only way my boys and I can drink water. Our favorites are watermelon strawberry, orange vanilla, and orange tangerine.
I used to be so bad about drinking water and I think it's because it's just kind of boring. I bought mio one day just to try and I've been addicted ever since. they have so many different flavors and all of them are good.