In just five days, we went from idea to launch. We designed a custom travel planner that was faster, friendlier, and far more fun than ChatGPT alone. Based on user interviews, we ditched the chat interface in favour of a smart onboarding flow. A few simple questions replaced endless prompts. The result? Personalised, AI-powered itineraries in minutes. On the design side, we built high-impact wireframes and polished screens in Figma, optimised for speed and delight. On the build side, we used Bubble to bring it to life - integrating OpenAI via Bubble’s API Connector and layering in Google Maps for easy navigation. Users could customise trips by destination, budget, and travel style. Behind the scenes, we engineered prompts that delivered full itineraries, broken down by day, while staying within budget. The interface was so intuitive that thousands of users started planning instantly. When we launched on Twitter, it blew up - and quickly landed features in Ben’s Bites and Not A Bot.