the best chocolate chip cookies (from Alisa)

2/3 c shortening 2/3 c butter 1 c sugar 1 c brown sugar 2 eggs 1 tsp vanilla 3 c flour + 1/2c for softer flour 1 tsp soda 1 tsp salt 1 12 oz package of chocolate chips mix the shortening, butter, sugars, and eggs together. Then mix in the rest