Start off by switching to diet. Tastes nasty to begin with, but eventually you won't notice the difference. So long as you don't go back and drink a REAL Dr. Pepper, that is. I've almost completely quit drinking regular sodas. I normally drink Diet Pepsi, Diet Pepsi w/lime (flavored stuff like that helps hide the taste and I like the Diet Pepsi/lime better than the Diet Coke/lime) and Coke Zero. Those, water, gatorade and milk are the things I normally drink. You can also look into the vast varieties of Crystal Light drink mixes, too.