Create an indoor den
Leaving a dog alone outdoors all day is a terrible idea. It guarantees problems with the neighbors and behavior problems from your dog.
If no one is home, use a gate, that he can see out of, to create a den in a room such as the kitchen or laundry room. A bored dog is a destructive dog and one that can harm himself by chewing or swallowing dangerous objects.
I don’t like to leave food out. Bored dogs can overeat just as bored humans do. If you can afford it, use a water dispensing product.
Create a soothing environment
One of the newest products available is an electric diffuser that releases Dog Appeasing Pheromones (DAP). Sounds weird may be a scent-sible solution for whining puppies.