I had been planning to finish my One Monthly Goal on Tuesday, but our power had been out for more than a day so I had to figure out something else I could work on. I ended up cutting out the fabric for four coordinating pillowcases, a doll dress, and most of the fabric for the Aged Elegance quilt.
Creative Grids 2 Peaks in 1 Triangle Quilt Ruler. It makes cutting out these triangle-in-square blocks easy. I wish I had discovered it sooner.