I've just released a chapbook of poems for free on Smashwords called LIFE IN THE MARGINS (https://www.smashwords.com/books/view/118873). You can pop over and download it without even joining anything.
Having never done this before (put out a free book) I am curious to see if it does, as I have been often told, stimulate interest in my writing. Of course, because it is poetry, the audience will be smaller than it would be otherwise, but there you go. You can't have it all. At least most of us can't.