John C. Jay is a renaissance man in the creative community, turning his hand to advertising, marketing and film, and generally turning everything he touches into gold.  These are his top 10 rules for creating:

1. Be authentic. The most powerful asset you have is your individuality, what makes you unique. It’s time to stop listening to others on what you should do.
2. Work harder than anyone else and you will always benefit from the effort.
3. Get off the computer and connect with real people and culture. Life is visceral.
4. Constantly improve your craft. Make things with your hands. Innovation in thinking is not enough.
5. Travel as much as you can. It is a humbling and inspiring experience to learn just how much you don’t know.
6. Being original is still king, especially in this tech-driven, group-grope world.
7. Try not to work for stupid people or you’ll soon become one of them.
8. Instinct and intuition are all-powerful. Learn to trust them.
9. The Golden Rule actually works. Do good.
10. If all else fails, No. 2 is the greatest competitive advantage of any career.

To that list I would add, always have a personal project you are working on, something you use to learn something new, or to fine tune your skills.