Dogs like humans need interaction, if you have to leave your dog alone for long periods of time consider hiring a dog walker or pet sitter, to come and check during the day and help you exercise your dog.
Unhappy dogs can get depressed and anxious if staying alone for long periods of time, without anything to stimulate them, they can begin chewing on furniture or electrical cords, bark incessantly, and practically destroyed your home, when you leave them alone either inside or outside in your back yard.
There are great products for dogs to keep them stimulated, like food puzzles, interactive toys and even tv channels like Dog TV.
You can also find exercise pens, extra large crates, folding gates and invisible barriers to keep them away from specific areas in your home.
Walk your dog everyday, before or after you come back from work, or if you left your dog alone for a long period of time, to keep your dog healthy and stimulated.
If your dog like to look outside, consider leaving a window without curtains or pulling them away with a hook or tie, to allow exterior sight, this way you will allow your dog to have some view without having him chew or make holes in your curtains.
If you have hardwood floors, keep your dog's claws trimmed, add some rugs to high traffic areas and or buy claw coverings ( thin rubber claw sheaths).
If your dog likes to chew, buy deer bones, you can find them at pet stores, they last several months and dogs love them, have toys available for your dog, you can find inexpensive dog toys at stores like Ross, Burlington Coat Factory, Marshals and even at Nordstrom Rack, at half the price from pet stores like PetSmart and Petco. Get little blankets for them to lay down without ruining the furniture, don't forget to keep the dog sleeping area clean, wash pet beds, blankets and inside of crates often, to avoid odors, and allow the dog to rest, they don't like to sleep in soiled areas.
Happy dogs will respect their boundaries and stay calm if you spend some time and take care of their needs, and when the time call to sell your home, you won't have to spend a fortune fixing and or replacing destroyed areas from your home.