We've recently noted that our questions per day stat has gone down. We recently had somebody propose a renewal of the Weekly Challenges, but as I posted there, I don't think it's the right solution. We have an huge resource of potential questions, all wrapped nicely up in our Sandbox
I did some research, and as of 7/3/2015, found that we have 180 unvoted, unposted, potential questions in our sandbox, the majority of them with 0 or 1 comments.
So, in order to help clean up the sandbox, and to increase our questions per day, I'm looking for a feasible way we can help these questions be moved or removed.
What can we do to encourage more activity in the Sandbox?