A creative routine is a topic that could expand to be as large and to shrink to be as small as you like, a bit like being able to sleep. While some people can’t focus until they have meandered around for hours and finally give in to guilt, others sit and get amazing work done by just holding the pen right: having a daily creative schedule could be complicated or could be simple and natural.
What does a creative schedule even mean? A schedule that inspires creativity and helps the creators (writers, painters, entrepreneurs, designers, artists, and other creative professionals) forge their imaginations most desirably.
Also, creativity is subjective. A coder is creative when she can write a 100 line code in 10. A marketeer is creative when he can sell a toothpaste such as Pepsodent to the entire human race.
Anyone with original ideas (in or out of their work sphere) is creative.