First, go to the sandbox on the side of the house and you should see a very small item inside it. Drag your person to it and they will pick it up and take it and put it on the shed. Then go to the doormat at the front door and drag your person to it and they will go unlock the shed and then it will be open to get fire extinguishers for oven and drying machine fires and the watering can will be inside it also.