I think people have to realize the difference between losing weight and burning stored fat. In order to burn stored fat, the body must release a certain hormone that triggers the reaction. In order for this hormone to be released, certain conditions must exist in the body. Certain things will absolutely block the hormone, the two major ones being excess insulin in the bloodstream and cortisone. Insulin is released to remove excess sugar and cortisone as a result of physical or mental stress. Take a quick look at the way the body processes food. The more processed a food is, the quicker it is converted to glucose (blood sugar) and enters the blood stream. You can think of it in these terms: processing foods takes the place of the first step of digestion. So if you eat a slice of white bread made from enriched flour, it is immediately converted into glucose in the stomach and released into the bloodstream in one huge dose. This triggers a massive release of insulin that will block the fat-burning hormone. If you eat a slice of whole grain bread, most of the process of digestion takes place in the small intestine over a period of a few hours and the glucose is released gradually into the bloodstream. So when people say "It's okay for me to eat a peice of cake because I am going to spend an hour on the treadmill later" that is completely untrue. Any day that you eat processed crap or drink alcohol or soda you will not burn fat! Don't even waste your time exercising.
Here is a method that worked well for me:
First, eat only whole grains. One slice of wonderbread is the equivalent of 4 spoonfuls of sugar. No soda or anything that contains excess sugar. Eat a calorie-conservative, balanced diet, but do not starve yourself. Then pick two days of the week when you will try to achieve most of your weight loss. During these two days, you will eat no grain products, only protein-rich meats, fish, and fruits and vegetables. During these two days you want to consume at least 15-20 grams of high quality protein every 2 hours. Wake up on the first day and eat breakfast (remember, no cereals or pancakes, but lots of protein and perhaps a peice of fruit). Then do moderate resistance training for about 1/2 hour (pushups and no-weight squats will work if you don't have access to equipment). You want to try and hit all of the major muscle groups if possible, but without stressing yourself. Then immediately do your cardio, no more than 1 1/2 hours.
The resistance exercise will rid your muscles of glucose, which is where it is stored. When you begin your cardio, since you hopefully have only protein in your system, your body will start converting that protein into the glucose you need for energy and also to rebuild the muscle tissue you just broke down. Now think of your cardio as exercising the heart and lungs rather than other muscles. Your heart and lungs prefer fatty acids as an energy source. If there is sugar present in your system, the body will easily convert that sugar into fatty acids. But since you haven't ingested any, it will look for other sources. Protein is much harder for the body to convert to fatty acids, so at this point, if all the conditions are right, it will start utilizing stored fat as an energy source and converting that into fatty acids. Again, the key here is not to exercise to the point of causing stress to the body and releasing cortisone.
Once you have triggered the fat-burning hormone, as long as you continue to consume a high-protein diet with no grains, you will continue to burn fat for energy even after you stop exercising. Most of this fat burning will ironically take place during sleep. Follow the 2 day guideline, and on the third day eat a diet rich in whole grains to replenish the vitamins you have been depriving yourself of.
I had amazing success doing this, going from 225 pounds to 170 in about 6 months.
Sorry this is so long, I wasn't trying to write a book, but hopefully others will try this method and find success.