Labradoodle & Goldendoodle Forum
Make everything that he does training and a game of sorts. Even mental activity will wear him out. Make him sit to go through a door in the house; make him sit, down, sit down, sit down. Indoor fetch. take him for car rides to run errands. Just being in the car will tire him out. There are many places your can probably take him inside with you, home improvement stores, garden centers, some stores.