This one is actually easy for me, I have never been a big pop/soda fan. Even as a kid I didn't drink much of it, just didn't really like it. My husband and my older kids, they are a different story, they love it.
I love iced tea. i've made the
Shortcut Lemon Tea listed here and it's good, but lately I have been using Lipton's Cold Tea tea bags. They are really easy, no boiling or anything, just plop them in cold water in a pitcher, remove, add sugar and you are done

I've had an article on FC for many years called
Liven Up Your Iced Tea and have never tried any of the recipes. They sound really good though! The Fruit Tea Punch and Honey Apple Tea sound really good to me
I also like Crystal Light. They make these handy little packets that you empty into a bottled water and they are really good. I try to keep those in the fridge too.
I'm addicted to flavored water, though I only seem to like the brand made by Aquafina called Flavor Splash. Those can get rather expensive though, especially since my kids like them too. So the Crystal Light is a better alternative
Barb, if you try any of those tea recipes let me know how you like them!