A harness is a good alternative to a collar because it eliminates pressure from the dogs neck, preventing possible neck injury.
Allow the dog to wear the harness around the house for short time so that he can get use to it. Make sure you praise the dog and give it treats.
Be sure it is snug enough so that he can't slip out of it. Correct fitting means you can fit two fingers between the dog and the harness. You don't want the harness to be rubbing be sure it fits properly. Only use the harness for taking the dog for a walk and take it off when you come back from the walk. Do not use the harness for running or hiking. Be sure that it is a comfortable fit for your dog.
Do not take the collar off because the identification tags are on it and they are very important.
Check out this video on how to properly measure your dog for a harness.
Cats like classical melodies or cat music that specifically appeals to cats. Make your cat's time alone interesting by having a tall cat tree, by the window, where they can look outside. Also cats can play in shelves and boxes. You can put some of the dry food in a hard plastic ball with a hole in the center. The cat has to roll the ball around in order for the food to fall out, it makes your cat work for it.
Some dogs that have a separation anxiety may respond better to radio music or TV. Radio or TV is a good distraction. It can calm the dog to hear a human voice. It makes them feel like someone is still there. If the dog relies mostly on his sense of smell, TV or radio might not work.
When the house is quiet, your dog might feel lonely and bored and that is the time that they become mischievous. You can put some of the dry food in a hard plastic ball with a hole in the center. The dog has to roll the ball around in order for the food to fall out, it makes your dog work for it.
It is a good idea to leave the night light on when it is dark.
You might want to put the TV on Animal Planet.
Professional Pet Sitting Services offered in the Upper to Mid-Pinellas County Area