First, you need a dog that has an acessory on. Then you take it on a walk by mark boxes but that are heading to the park. Once you get there, take OFF the acessory and put ON a NEW one. It will save. Then, turn your DS off. Turn it back on and your dog will be home with all the stuff you got on the walk. YOu can sell the all the doubles and after you do this for a while, you will have ALOT of money. I did.