Your roof is the most important part of your house. You can ignore maintenance on many other home systems for years and probably not suffer serious consequences. Not so with your roof. A roof leak will quickly destroy your home and turn it into a rotting decayed moldy mess. You should not only have spare roofing materials on hand, but know how to make repairs. Once the stores close, you will be out of luck. Check out this video and learn how to repair a missing or broken shingle: