Start off your day with a fresh, clean glass of water. As soon as you get up in the morning, drink one down. This will help your body to get going because it won't be fighting through dehydration. Also, after you drink a glass of water you won't need to eat such a large breakfast. A glass of water wakes up all the digestive juices in your body and gets it well lubricated. You can always have your morning coffee or tea, but be sure to have a glass of water afterwards. Caffeine dehydrates you and you want to ward off dehydration.
Drink a glass of water before you sit down to eat. Water will naturally make you feel fuller so you don't have to eat as much food.
Have a glass of water while you eat as well. Take a drink after each bite and you will feel full more quickly so you can leave the table feeling satisfied without feeling bloated. Drinking water while you eat will also help your food to settle more quickly, which also helps you to feel full faster.
Do your best to stay away from soda. All sodas are sweetened with lots of sugar. The more you can cut out of your diet the better. Also, diet soda is still soda. It may not have as much sugar, but it has other chemicals and components that are not good for your body either. If you drink a soda,
Counteract it with a glass of water. Remember, caffeine dehydrates you as well. Decaffeinated sodas still have caffeine in small amounts as well and just as much sugar, so they are not much healthier either.