Ask HN:Does anyone make money off sites like Code Canyon?

Title says it all. I'm just trying to think of different ways to supplement my income, and side work is tough (deadline wise) when I got two kid under two. I'm proficient in iOS, php/mysql and the typical HTML/CSS/JavaScript stack, so I figured it would be cool to make some money off helpful plugins/classes.

So, does anyone use Code Canyon or similar sites? Have you had much success?