I cannot put writing on a schedule. There are days when the information, ideas, questions, thoughts, conflicts, etc just flow. Those day's are the one's where I have to fight to find logic and organization in the things I want to write about.
Then there are those days when there is nothing. Days when I cannot create a thought to put on paper, or type into my word processor.
I do not consider myself to be creative. But I do believe I have the ability to ask relevant questions, and organize thoughts that support the topic at hand.
How often do I write? As often as I have ideas. As often as the thoughts flow. As often as I can.