There are a lotta good tips here.
The biggest thing to remember is if you are not seeing the results you want change something . Also remember that weight loss comes best when you eat fewer calories and burn more calories.
And my favorite Weight Watcher tip? Write every thing you taste, eat or drink down in a diary. If you want to enhance this process, measure everything you taste, eat or drink. This forces you to become aware of EXACTLY how much you eat, and believe me--I know this from hard personal experience--most people who are overweight eat alot more than they need. If you are sedentary, a couch potatoe, you really need very little food to keep you alive and moving.