I use mine in lots of different ways. Some days I am just hungry and need a bit more food, even if I ate good filling foods and lots of veggies. I don't feel deprived. Other days, I get to have a treat, again, prevents me from feeling deprived when others are having a treat.
I like what others have said about not having to stick to an exact number every day, but rounding it out. I have also been reading about members using something called the Wendy plan that PLANS having some days with higher points to get out of stalls. Sounds interesting.
zen and the art of weight loss, finding the true path of en-lighten-ment