Always leave your heat on. Place your heat on low, no less than 50 degrees, when away from the home or on vacation.
While sleeping, allow ALL faucets in your home to drip at a rate of 1 drip every 2-3 seconds. This keeps water flowing through your pipes to avoid pipes freezing. If the water pipes freeze, water flow will not restore until pipes thawed.
Open cabinet doors under sinks to keep pipes warm.
Make sure you know where your water cut off is at your home. This will cut the water off to your home until the burst water pipe is repaired.
Disconnect all garden hoses from exterior faucets, if applicable.