Here's a new development:
Andrew with a blankie. He's never been very interested in blankets. He has 5 of them in his crib and he often ends up in a heap on top of them, but he does NOT like to have them on top of him and has never wanted to hold one or carry one around. Until today.
He was playing in my room and left for a minute. He came back with one of the blankets from his crib and was not completely happy until I had laid it out on the floor with NO wrinkles. A few minutes later, we left to go to the store and we were not allowed to leave without blankie. He even carried it around in the three stores we went into. Huh.