First of all, you should read the introduction which discusses the question: “What can I do to Increase my creativity?”

Techniques for Creative Thinking:

• Random Input
• Problem Reversal
• Ask Questions
• Applied Imagination – Question Summary
• Lateral Thinking
• Six Thinking Hats
• The Discontinuity Principle
• Checklists
• Brainstorming
• Forced Relationships / Analogy
• Attribute Listing
• Morphological Analysis
• Imitation
• Mindmapping
• Storyboarding
• Synectics
• Metaphorical thinking
• Lotus Blossum Technique
• In the realm of the senses
• Use of drawing (from Robert McKim’s Experiences in Visual Thinking IdeaToons (by Michael Michalko) New!
• NLP (Neuro-Linguistic Programming) Techniques
• Assumption Smashing
• DO IT! method of Roger Olsen
• LARC Method
• Unconscious Problem Solving
• Simplex – a “complete” process with three stages (finding problems,solving problems, implementing solutions) and eight discrete steps represented as a wheel to reflect the circular, perennial nature of problem solving. The full name is the Basadur Simplex process. Its eight steps include: problem finding, fact finding, problem defining, idea finding, evaluating and selecting, action planning, gaining acceptance, and taking action.
• Fuzzy Thinking  – Some further examples of creativity techniques and guidelines linked with historical examples.
• Breakthrough Thinking – The seven steps of uniqueness, purpose, solution after next, systems, needed information collection, people design, and betterment timeline.
• Michael Michalko’s Thinkertoys
• James Higgin’s 101 Creative Problem Solving Techniques

Techniques for Creative Thinking (PDF)