a method i use is portion control through small containers...much easier after buy a bento box at a japanese gift store.

I am fortunate to also have some 6oz, 8oz and 16oz containers to put my meals into. Small plates also help in that they will make your portions seem larger as they take up more room. My meals are also veggie heavy. because veggies don't have the water content as fruit and meat, they take up space in your stomach with little calories added.
I also make it a point to have a different calorie imput from day to day. this is to keep the body guessing. My body has an amazing ability to adapt when there is a pattern to my eating habits. Usually if I have a 2 month stint of lean times and there is little food to have, my weight will maintain. (so much for that old thin person cure for fatness of "just eat less") But i have been very success full bouncing around 1200 to 1600 calories, large lunch small dinner, small lunch large dinners. I also have the benefit of having a fairly active job.
Good luck!