Combine flour, baking soda, and salt; set aside. In a large bowl combine margarine, sugar, brown sugar and vanilla; beat until creamy. Beat in eggs. Gradually add flour mixture; mix well. Stir in chocolate chips and nuts. Divide dough into quarters. On waxed paper shape each quarter into a 9" roll. Roll in the waxed paper. Refrigerate up to 1 week or freeze up to 8 weeks. To bake, preheat oven to 375 degrees. Cut each roll into 1" slices. Cut each slice into 4 pieces. Place on ungreased cookie sheet and bake 8 to 10 minutes. Total recipe makes 12 dozen.