21 Day Fix portion control containers from Beachbody. Learn how to use the color-coded containers and calculate your caloric need. -- you don't need to buy these specific containers or count calories to use this concept for portion control!
Great website if you are looking to lose weight or maintain weight. It will calculate how many calories you need depending on what your goal weight is and has a food diary that keeps track of calories, cholesterol, fats, and everything else.