Do cardio workouts. Important step to get six pack abs: There is no way to target fat loss in any area of your body. You need to lose some of that extra fat over your abs. Even if you work out and get gigantic ab muscles, if there is still a layer of fat over them no one will ever get to see them. Cardio workouts are workouts that raise your heart rate for a given set of time. Some examples would be running, jogging, bike riding, dancing and rowing.
Eat smaller dinners. Large dinners tend to hurt a fat loss process because most people aren't very active after dinner. This is the basis for advice along the lines of "don't eat anything within a certain number of hours before going to bed". The claim that your entire dinner is stored as fat isn't entirely true. The process is more complicated than that, but the fact you don't move after dinner is enough to hurt your cause. You can offset this by eating a larger lunch or snacking healthily before dinner. Fresh fruits or vegetables are excellent choices for curbing appetite not to mention other health benefits. A handful of nuts might do the same. Drink a large glass of water before sitting at the table.
Eat breakfast. Many people skip breakfast because they don't have time for it. The harm of skipping breakfast from a weight loss perspective is it makes you eat a huge lunch since your body hasn't had anything in the past 12 (or more) hours. When you eat a huge lunch you get that after meal drowsiness so now you're both unproductive and inactive. Cereals don't take much time to prepare and consume, and most of them are very healthy nowadays. If you are extremely pressed for time, consider grabbing a box of breakfast bars or a smoothie and throwing one in your bag when you leave for work or school. Some breakfast bars out there are also excellent sources of fiber. Even an apple or a yogurt is better than nothing. Ideally, your breakfast should be the biggest meal of the day, lunch the second, and dinner...