Virtual try-on technology has been transforming fashion e-commerce by allowing customers to visualize clothing and accessories on themselves before making a purchase. Millennials and Gen Z are driving demand for AR/VR features, with 30% stating they want more in their online shopping experiences (from Virtual try-On: Game Changer or Hype). Virtual Try-On not only enhances the decision-making process when shopping for fashion online but also serves as a powerful tool for discovery and inspiration. Having spent over five years working in this field, I've observed significant technological advancements and gathered valuable insights from experimenting with various approaches, UIs, and types of try-on experiences. Here are some best practices I've learned throughout these years to ensure a successful VTO launch, focusing on user engagement, technology quality, and thoughtful UI/UX design.