I drink iced tea year round! Cheap tea bags, but mixed with some Thai tea, or flavored with fresh spearmint, when that's growing, or some of that chai masala powder I make. All this is sweetened, but only a little, and I figure it's better (and cheaper) than drinking soda! I make up almost a gallon pitcher of tea every day.
And something I almost forgot - a cheap teabag I get at DG, simply "tagless teabag", is actually a cheap oolong tea, not the usual black tea in tea bags. The first time I used that, many years ago, I realized this, by the flavor and color. I broke one of the bags open, and could tell by looking at it, that it was oolong. I often got cheap boxes of oolong at the Asian markets, and some were not even as good as this, and often, of course, the brand would be gone in a couple of years!