Edward de Bono's Ten Rules for Simplicity:
1. You need to put a very high value on simplicity.
2. You must be determined to seek simplicity.
3. You need to understand the matter very well.
4. You need to design alternatives and possibilities.
5. You need to change and discard existing elements.
6. You need to be prepared to start over again.
7. You need to use concepts.
8. You may need to break things down into smaller units.
9. You need to be prepared to trade off other things for simplicity.
10. You need to know for whose sake the simplicity is designed.
Edward de Bono (1999) - Simplicity.