I'm not a big believer in writing exercises. Total heathen, actually. Sure, they help you sharpen skills and generate content, but usually they're throwaway gimmicks that work for some and waste time for many.
Except for this one.
Oh no, not another blog! We don't need anymore of those. Stop, Brandon--just stop. Go do some actual, y'know, fiction writing. Work on that horror novel you've been slaving away at. Or roll out a new short story. Or even a screenplay. Anything but a blog.