Empty pockets!

I've been debating getting a second job for a few months now. I've called about 2 very specific ones only to hear the position had been filled. I can't sleep when I know there is debt, and it worries me to think if an emergency came up, we might have to borrow money. It's not a huge debt, but it's debt none the less. Maybe I'm crazy to think we can live a fairly debt free life?
The problem is I don't know what I want to do for work. I've debating tutoring (and would seriously do it if the opportunity came along), and even going back to waitressing (quick, easy money at something I know I'm good at). I don't want to wear myself out or to do anything that would impact the energy I have for my full time job. It just seems that I have so much on my plate right now, one more thing might be too much, yet I really can't deal with this debt! I just wish there was some quick and easy way to make money, short of winning some gross amount.

Any ideas?
And no..any jobs in the sex trade industry are out.