I'm very interested in the functionality of a product and always aspire to take my designs to a level where form and function can be tested.
There have been times when I've gone overboard with bells and whistles. This is why I think it's very important to be able question your own work to be able to crystallise the original idea. To avoid superficial additions simply because they're "cool".
Seeing simplicity as a strength rather than a weakness is one of the most important things I'm trying to learn as a designer. A sharp focus on core functionality can create experiences that are pure and easy to understand.
Right now I'm fascinated about open-source hardware and software platforms (like Raspberry Pi) and what kind of things they can enable in design projects.