Exercise in the morning, it keeps your metabolism up all day.
The biggest problem with just sitting around or plopping down in front of the tv is invariably we start munching. I like to have carrot and celery sticks ready to go in the refrigerator, just put them in water. NO DRESSING, just eat them plain.
Do you have space for a veggie garden?
Avoid carbs with little or no fiber such as pasta, white rice, white bread as much as possible. For white rice substitute brown rice, barley, quinoa, etc.
Cheap meat + beans + spices = chili.