Claire has a careful, meticulous personality that borders on being OCD. When she notices a speck of dirt anywhere, she will point it out to me. When there is a wet spot on the floor, she will wipe it up. And just recently, she has started to come to me with her teeny weeny hangnails, asking to have them clipped off. Even when she plays, she is organizing and arranging just so. Her methods do not always make sense to us, but they do in her head and she tends to FREAK OUT if her format is disturbed. An example of Claire's OCD nature. Aerin, by contrast, is a destroyer. We have nicknamed her "Mini-Godzilla" because she is all about wrecking, demolishing, and deconstructing. When she...