Topo Chico

If you haven't ever had sparkling mineral water, do it. Do it now!
It's plain old water with a little tiny bit of carbonation. For me, it satisfies that part of my brain that likes soda, without all the sugar and coloring and flavoring and stuff that makes soda bad for you.
Here's a bit of a warning though: it's not sweet at all. I know since I said it was plain old water with carbonation that kind of implies that it's not sweet, but seriously, your brain will want to tell you it should be sweet. If you can get past that, it's deeelicious.
I'm addicted.
That is all.