Best wishes to Sonja, who volunteered in our lab as a highschool student. Sonja made significant progress in improving our synthesis of mixed-halide nanocrystals during her time here, and we are looking forward to seeing her research career take off when she joins a new lab at Syracuse University. We will miss your great questions at group meeting, the photos of your baking creations, and your reports on Mistoffelees the cat and your neighborhood garbage bear!