Get in the habit of drinking half of your body weight in ounces of water each day. I label my water bottles with times I must drink a certain amount by. Get a nifty looking reusable bottle to help keep you motivated.
Try Breezers by Halls. They do not contain menthol or eucalyptus. Those ingredients can contribute to chronic cough.
Instead of yelling from room to room at home, bring the communication partner closer to you when communicating.