Big disasters, such as the winter storm that shut down Texas’s power grid, are relatively rare. But you might be surprised to learn that boil-water advisories, like the one put into effect during that storm, are quite common. Fortunately, preparing to have clean drinking water on hand, no matter the scenario, is easy. In this video, Wes Siler explains why absolutely everyone should keep one of these $40 MSR Home Emergency water filters around. He also shows a couple of other options that can make your drinking water even safer.