 They knew a lot of things. They knew how to bake, and they knew how to can, and maybe some of that has made its way to you, or maybe all of it has. You know, lucky for you if that's been all passed down. But grandma also knew how to keep her house cool in the heat of summer. And you say, well, yeah, but it's hotter now than it ever was for her. And they had their moments too. But grandma knew some things like open your windows at night.