12 Ways To Winterize Your Home

6. Check for drafts: Even the smallest cracks around doors and windows can create drafts. With your exterior doors closed, have another person stand outside and shine a bright light all around the door. If you see light from inside, it's time to repair or replace your weather-stripping. Around windows, use a candle -- preferably on a breezy day -- to check for air leaks, then repair the weather-stripping as needed.