Here, I'll plug my own stuff again.
In 2011, after I was laid off from my job, I wrote a book. Or rather, I finished a book I had started. It's a book about bad video games* and kind of recaps a decade+ of previous experiences with video games and things I've written about or covered in the past.
It is called
Nintendon't: 25 of the Worst Video Games Ever, and it is available through Amazon for a measly five bucks:
http://www.amazon.com/Nintendont-Worst-V...tendon%27t
I actually sell about a dozen or so of them every month, which is great. In about 4 months' time I made $120 selling copies. Not much, but that's $120 I didn't have.
*It's really an opinion piece so your mileage/agreements may vary. I included Sonic and Pokemon titles in the list, some of which are games people consider "untouchable".