Savvi Financial approached me for a quick project - they needed to design a modern wizard UI that would walk people through creating and updating their Health Savings Account.
Since HSAs aren't exactly the most thrilling topic, the goal was to break down the wizard into bite-sized chunks, giving the user the sense of ease and accomplishment as they go through the UI. I also gave the overall look and feel an enjoyable, approachable sense, with custom and stock illustrations, careful to make the site fun without being unprofessional.
The result was a huge success for the client, and the wizard has been in heavy usage since it was launched.