Lower your thermostat to 55–60°F to prevent frozen pipes and save energy. Shut off the main water and drain faucets if away long-term; insulate exposed pipes and exterior faucets. Clear gutters to avoid ice dams, secure windows/doors, and set timers for lights. Arrange snow removal or a neighbor to check the property and leave local emergency contact info. Unplug nonessential electronics, hide valuables, and pause or collect mail/packages.