My professors in creative writing classes and forums stressed writing every day for at least an hour at a place where you are comfortable and will have hopefully no interruptions. Some like to write at night, others early. Everyone is different so you should find your time. For me it is 10 am to noon. Some people like to go to a Starbucks to see the faces of people, the bustle of the crowd, and the coffee for inspiration. I prefer my desk overlooking my front yard. Another suggestion is to always use your favorite writing pen (preferably not a ball point-and not typing). The connection of your hand to the pen and what you write is a stimulating one for most writers.
List the most compelling words you can think of in a notebook. I always keep a writing notebook for inspiration. When you have that dream that you won't remember in the morning, get up and write it as you recall it right after you have experienced it. Waiting later will lose it usually.
Don't be afraid to copy a writer's style. This is especially true of a poet. Find a poem you like, and take out your thesaurus, change the words, move around inserting your similar experiences and use the format. Amazingly simple way to create a new poem by just following someone's road map. Always read a great author for at least 30 minutes before writing. This is warming up your creative thinking. Your brain needs this. You will see a difference in your attitude, and willingness to explore language and its beauty.
Revise: All creative writing requires once you have written your piece, to go back and revise with an eye to use of heightened language (metaphor/simile, evocative vocabulary, sense driven language, action verbs and brilliant nouns) and remove any boring adverbs and adjectives. Check spelling by starting at the end of the piece and work backwards so you aren't lulled into accepting a misspelling you may make frequently. Read it aloud and see if there are awkward words when spoken that should be changed. If it doesn't sound right, it won't read effectively. Make sure each of the five senses appear somewhere. See if you can't make your descriptions luminescent.
One of the secrets of nonfiction storytelling is the use of description. Much as a novelist would, these nonfiction storytellers set a scene and describe their story's action. Above all, they have an eye for detail and employ these carefully observed facts to bring scenes alive for readers.
Look for opportunities to put the reader into the action. Where are we? What's it look (smell, sound) like? Who are the characters? What do they look like? How do they act? Strive to be specific, not general: Name names, measure things, count so you can report exact numbers. Learn to identify trees and birds, car makes, and architectural styles.
So instead of writing, "A lot of birds perched on the ornate rooftop," do the homework and note taking necessary to report, "Thirteen purple martins perched on the Italianate rooftop." Rather than describing "a big pile of old cars," aim for "a 20-foot pyramid of rusting, windowless Fords, Toyotas, and Chevrolets."
This kind of descriptive writing starts at the very beginning—at the note-taking stage. You can't just plop down at the keyboard and conjure this up; you have to be there, all eyes and fully alert, and noting details. Don't forget the senses beyond sight. Are the bees buzzing, trucks rumbling, horns honking? Do cockleburs scrape your pant legs as you walk to your subject's front door? Is your interviewee's desktop smooth and new or pitted with age and use? Give detail and description a try, and you'll find that you can be every bit as "creative" a writer when you're not making things up.
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http://www.danielclavery.com (author website)
All the Difference, a memoir by Daniel C. Lavery, available at Amazon.com. for purchase or free look inside of the first 6 1/2 chapters at Dan's website: http://www.danielclavery.com, and on Amazon's Kindle at http://www.amazon.com/dp/B00BNXHV9Q, A paperback version is available at http://www.amazon.com/All-Difference-Daniel-C-Lavery/dp/1482676532/