Divergent thinking is a great tool for creating new ideas. The goal of divergent thinking is to push your mind to think of something else; to think in options. The most important rule when practising divergent thinking is to postpone judgement. Generating ideas is as least as important as choosing ideas.
Associative thinking is another thinking technique that is often used. This technique is about creating combinations. You link your organisation, your product or your service to something else. For example, to a certain trend, a movie, an animal or to a technique.
Lateral thinking is basically bending or breaking rules. Lateral thinking pushes yourself to think outside of the boundaries you set earlier. Either in limitations or in possibilities.
After having practised these three different thinking techniques, you can create synergies and make a first analysis of your ideas. This is the point where you can actually start to judge a little. You can combine some ideas into a bigger concept and create synergies between different ideas.