Anahi Ortiz has some good posts on ADD or ADHD and eating/weight problems. I have a constant struggle with weight. I use some of the basic concepts:
Drink water before and during each meal. Chew slowly and thoroughly and savor each bite. No seconds on anything. Set the utensil down between bites (hard without willpower). Exercise (ditto).
But I also have some special approaches that help me personally:
Diet popsicles for desert, and then an olive or a piece of fruit, and keep the pit in my mouth. And a wonderful candy, Ginger Chews, which has only 2o calories, dissolves slowly, and then leaves my appetite/craving curbed. I have lost weight recently through all of these and switching from scotch to wine, half the calories, and cutting out bread. So the principle is to watch the calories.
Diets do not work; controlling weight takes a long term change in eating and exercise.
Anahi Ortiz on ADD or ADHD and weight and eating problems clik here
Thanks to all for the great comments. Magpie just gave me a great tip for the driving off with the gas hose problem (clikhere), and now I hang my car keys on the gas tank latch. It works!