If you haven't done so already, switch to diet soft drinks. An average 12 Oz can of regular soda contains around 120 calories, while the diet version usually has one or zero. If you drink 3 cans a day, you'll be saving 360 calories right there. Now multiply that by 7 days a week, 30 days a month and 365 days a year... You'll be saving a lot of calories!