Hortensia, I saw your question about Weight Watchers on the other thread, but thought I would answer here.
The WW program has changed over the years, so someone that did it 5 years ago will find a different program than what they originally used.
They have 2 programs now, the Flex plan and the Core plan.
On the Flex plan, every food has points based on the calories/fat/fiber. So an items with 150c/4fat/0fiber would count as 3 points, but an item with 150c/2fat/4fiber would only be 2 points. They start you off with a booklet with hundreds of food items listed along with an easy cardboard calculator that will allow you to input the information from any nutrition package to find out the points per serving.
The Core plan has you eat from a Core Food List and then gives you additional points for the week to use on items not on the list.
The WW leader made a good point today about the fact that the program helps you learn to eat the foods you already like to eat, but in the portion size that is appropriate. I don't cook much differently for my husband and son than I did before. I still have all the same meals with them. I may increase my veggies and measure and weigh the main course but I'm not cooking separate meals. I can't do that for the rest of my life so why do it now?
I do all of my logging into my food journal online. I signed up for the monthly meeting pass (easiest way to go I think if you are committed to losing weight) and get the online tools free with it. I'm on the computer every day anyway so I might as well take a few minutes to enter my food information each day and keep myself on track.
You can usually go to a meeting for free to check it out but can't get the materials until you sign up. Their website has a lot of information that you can review and find a meeting near you if you are interested. Weight Watchers