I like this idea posted in “The Writers Community” on Google+ by Teri Chetwood:
I really recommend everyone try their hand at fictional blogging. That’s where you write blog posts as your characters. It’s not just fun, it’s good practice, you can build a following, and you can end up with enough posts to make a book you can self-publish. (Since it’s already been published, most publishers won’t touch it, but you can publish it yourself.) That’s what I’m doing with my upcoming collection of blog posts and short stories, The Fabulous Cornwall Sisters.