Stuck? Try changing the input. If you’re stuck on a project, or stuck without an idea (my current situation) try stimulating your brain. Wander around artwork sites such as deviant.com… go see several conflicting-concept movies in a row… go visit the downtown of your nearest city and watch people. Insert a lot of random, wildly different visual stimuli into your system, then sleep on it a day or two, and see if something doesn’t bubble to the surface.
Our brains work in mysterious ways sometimes. 
