Keep on the lookout for novel and interesting ideas that others have used successfully. Your idea needs to be original only in its adaptation to the problem you are working on.
… you might think that political correctness dampens creativity in groups. But a new study … suggests just the opposite: Particularly in coed groups, asking people to be politically correct … leads to more creative, novel ideas.
All behaviour consists of opposites. Learn to see things backward, inside out and upside down.