Make sure all of your garden hoses are disconnected
from the faucets. Today most homes are equipped with
"frost free" hose bibs that are not supposed to freeze.
But what most people don't realize is that unless you
disconnect the hose from the faucet the water inside of
the faucet can not drain and they can and will freeze and
break inside the wall. Simply disconnect the hose so the
water inside the faucet can run out.
If you live in the south you need not worry. In the north pipes do freeze
and bust wide open if we don't take precautions. It just
adds to ambience of living in the north.