If you self-publish short fiction on Amazon.com for the Kindle like I have, I just figured out something that could be very beneficial for you.
Something I've noticed if one uses Tab to indent paragraphs and then uploads from Word directly to Amazon Kindle Direct, the paragraph indentation sizes vary. Most of the time they're the same size or vary only slightly, but occasionally you get really severe indentations that look like you hit Tab twice. That's not good.
Today when I was uploading "Picking Up Plans In Palma," I decided to use block-style paragraphs--no indents and a space between each paragraph. The result was much, much more readable. As a self-publisher I've already got one strike against me--I don't need more due to mediocre formatting. I went back and reformatted all but two of my stories into block paragraphs and I'll do the remaining two later.
I hope this proves useful to any indie writers out there...