My downfall was definitely portion sizes! The food tracker really helped me get them under control.. I too ate way too much cereal bread, butter and cheese. Now I pay attention to the 50% carbs, 30% fats and 20% protein that Sparkpeople suggests to aim for each day and it sure worked for me. I only had one week where I didn't lose and now have been maintaining for 6 weeks or so. I am hooked on Spark!!