Thanks for your comment Sue. Ordinary doodling comes from the subconscious. Art doodling (Zen tangles, mandalas, and others) is planned. When I started to do art doodling I used a black felt-tip pen and "graduated" to colored pens. I realized that adding watercolor to my doodles was easier. First, I do a quick sketch. The sketch is usually messy because, after all, I'm creating doodle art. Next I add watercolor and use unusual, bright combinations, such as yellow sky. After the watercolor is dry, I add doodle details with a black felt-tip pen. Mayo Clinic Hospice is using examples from my art doodling book and I also wrote some new prompts. Happy doodling!