In this chapter, we saw how to create Windows applications using widgets and dialogs. We also saw some customizations that were added to our application, and finished the chapter by creating a digital clock application. The knowledge gained in this chapter will help us in creating basic GUI applications using PySide and, more importantly, provide the foundation for any GUI application. We will start to explore creating main windowed applications, such as Notepad, and how to arrange visual components using different layouts in the coming chapters.