Addicted to soda?

It appears that I like soda too much. During much of this summer, I have drank at least one soda almost every day, even though it's better to drink water on hot days. Also, I've spent a lot of money on it. My favorite sodas are Coca-Cola and Pepsi which have caffeine, which is unhealthy in itself. This is taken further by the fact that I also drink coffee on some days, so having that double dose of caffeine in one day could come back to haunt me. But if I stop drinking all of this soda, I would be spending a lot less money and it would be healthier to mostly drink water. That probably won't happen, though, with my soda drinking patterns lately.