Diet Soda

I was reading the paper today and an article stated that drinking diet soda contributed to weight gain. I am at least a 2 diet soda drinker a day (hey, I don't drink coffee and need my caffeine from somewhere) and that puts me in the category where waistlines increase 5 times more than a person who doesn't drink diet soda. Guess I need to find something else to drink now. Hmmmm.... now what do I put with my rum????