Generate a full detail guide on the creative strategy of 'cross-pollination.' The guide should be inspiring and intellectual. It must include: 1. An explanation of the concept: borrowing ideas from unrelated fields to create something new. 2. A detailed case study of a famous innovator who used this technique (e.g., Steve Jobs and calligraphy). 3. A practical guide for readers on how to actively seek out cross-pollination (e.g., reading books on science if you're an artist). 4. A list of 10 surprising combinations of fields to explore for inspiration. Please include a supportive disclaimer.