Experimentation is crucial for any photographer's creative growth. How many successful pros have you seen profiled in these pages that cite rigorous experimentation as the key to their success? This is particularly due to post-processing and retouching. It seems like the vast majority understand the importance of fiddling around on the computer to find new ways to make interesting photos.
Hollywood has utilized the Dutch angle for decades, frequently to represent disorientation or confusion. In funkier films, Dutch angles are often used in lieu of square compositions. You can use it for a dramatic purpose, or to just make your shots more interesting; either way, there's probably no easier special effect to achieve than the Dutch angle.