As of about 11 hours ago, I became my friend's keep-me-honest person. He wants to be a writer and I told him that he needs to write every day. That before he has a chance to think about anything else, he needs to write. Get up, grab coffee/food, and write.
That being said, I decided to do the same. Except with songwriting and music instead of prose. At one point in my life I had a solid routine. Then...I didn't. But I want it back again. Wake up, drink water, eat, loosen up, guitar. It's not hard. In fact, it's quite simple.
Some people can get by waiting for inspiration. I like to think that the more I hack away the more likely inspiration is to come. You gotta write the bad stuff to get to the good stuff.