Heat oven to 350°F; line sheets with parchment.
Cream softened butter and both sugars in large bowl 3-4 minutes until light and fluffy.
Beat in eggs individually, then vanilla thoroughly.
Separately whisk flour, baking soda, and salt.
Gradually mix dry into wet just until combined; do not overmix.
Fold in chips with wooden spoon or spatula.
Drop rounded tablespoons about 2 inches apart on sheets.
Bake 10-12 minutes until edges golden and centers slightly underdone.
Cool on sheet 5 minutes; transfer to rack to cool completely.