There should be two couples in a double date. There should be two large pizzas in every delivery order. FBI agents should come in twos, just not to my house. Opposable thumbs should come in twos. Cats, if they have to come at all, should come in twos. There should be two hemispheres in every brain. Checker pieces should have two sides, and so should the coin they flip before the Superbowl. And there should be two albums inside the sleeves of Exile on Main St.
Babies should still not come in twos. And neither should sinuses, lest they get infected. Like mine.