Adding a zipper to a quilted bag might seem tricky, but with a few simple techniques, it becomes a smooth and satisfying process. In this step-by-step guide, I’ll walk you through how to neatly insert a zipper into your handmade bag so it lays flat, functions flawlessly, and looks beautifully finished inside and out. Whether you're sewing for yourself or selling your creations, mastering this method will give your bags that professional edge every maker wants.