Try to avoid sugar. Highly sweetened foods tend to make you crave more. Drink six to eight glasses of water a day. Water itself helps cut down on water retention because it acts as a diuretic. Diet with a buddy.
Support groups are important, and caring people can help one another succeed.
Start your own, even with just one other person. Substitute activity for eating. This is especially helpful if you eat out of anger. If the pie on the counter is just too great a temptation and you don't want to throw it away, freeze it. If you're a late-night eater, have a carbohydrate, such as a slice of bread of a cracker, before bedtime to cut down on cravings.