Oatmeal cookies

1 1/2 cups butter
2 cups brown sugar
1 cup sugar
4 eggs
1 tbsp vanilla
2 1/2 cups flour
1 tsp baking soda
1 tbsp cinnamon
2 tsp salt
6 cups oatmeal

Mix everything together very well. Scoop out small amounts for each cookie and place in an oven that was preheated to 350 degrees. Bake 15-17 minutes.