Circle K is the king of cheap fountain soda. $ 0.79 for any size soda. They’re fairly cheap for iced coffee too. The best thing is that their fountain soda and iced coffee tastes better than 7-Eleven, which used to be my first choice. We were returning from Street Science and this place was convenient. With the lack of reviews or photos, I thought that there was a problem. Except for the location being a little too close to I-580, there is no serious problem. They make up for their cheap soda with expensive snacks. The service was friendly and the store was organized, as though someone cares.