Cold Frame from an Old Window

Every January, we get a burst of good weather for a few days and it feels like spring all of a sudden. And even though I know it’s not gardening time, it is so tempting to plant. (I weeded instead.)
But you can start seedlings around now, either indoors or in a cold frame like this one from Instructables, which is recycled from an old window. The window acts like a little greenhouse to protect the seedlings from the cold. (Via Permie.net)