Preheat oven to 350 degrees.

In a large bowl, cream together softened butter and both sugars, until smooth. Add eggs, one at a time, beating well after each addition.  Add in vanilla extract and stir. 

In a separate bowl, combine flour, baking soda and salt. Slowly pour flour mixture into butter mixture, 1 cup at a time, stirring well after each addition. Once flour and butter mixture are fully incorporated, fold in chocolate chips. Drop tablespoon sized dough onto an ungreased cookie pan, and bake in preheated oven for 8-10 minutes.