Preheat oven to 350 deg. F. In a large mixing bowl, cream together margarine and/or shortening, sugar and brown sugar. Beat in eggs and vanilla, then mix in baking soda, baking powder and salt. Mix in flour and then the oats. Finally, mix in the chocolate chips. Spoon onto baking pan in approximately tablespoon-sized balls of dough. Bake for 8-10 minutes. Allow to cool before serving.
Number Of Servings: Makes about 2-3 dozen (but don't worry, it can easily be doubled!)
Preparation Time: About half an hour