I calculated how many points in a traditional s'more, so I'll pass it along.
A traditional Hersheys bar is 5 points for the whole bar, so depending on how much chocolate you like on the s'more, you can calculate. I like less chocolate, so probably 1/4 to 1/8 of a bar is good for me.
A marshmallow has 1/2 a point per marshmallow
A traditional graham cracker has 1.5 points per full cracker. I also calculated with the low fat grahams which there is no difference in points.
So if S'mores are in your picnic menu, now you are equipped with the information!