Well, it's about a year later and Charlie is up to about seven tricks and is still a bundle of energy. We play 20 minutes in the morning, afternoon, and evening. Besides that we walk for an hour around the campus, weather permitting.
He has one very special toy. A fire engine red Elmo. He can't go to sleep without it and carries it around during rain storms. If it ever falls apart I'm dead in the water since it's a child's toy and they no long make that size. If I knew at the time it would be such a big hit I would have bought two or three.