Drain and shut off outdoor hose faucets before the first freeze
Added
Before cold weather, disconnect and drain garden hoses, close the inside shutoff valve for each outdoor faucet, then open the outside faucet and leave it open so leftover water can drain and expand without breaking the pipe. Insulate exposed pipes in garages, crawl spaces and under sinks with pipe sleeves or UL-listed heat cable.
The result
Result: American Red Cross: outdoor hose bibs and pipes in unheated areas freeze most often; on very cold nights, a dripping faucet and open sink cabinets help, and if you travel, keep the heat at no lower than 55°F.
Source
American Red Cross (Frozen pipes) (opens the original source in a new tab). Check it for the latest numbers before you act.