To get or to not get a second job?

That is the question.

Currently, I work a 40+ hour job, attend school at night and volunteer in my free time. It's not always the most peachy of situations but I feel that it's essential for me to progress in my career. I would stop going to school but I {luckily} am grandfathered into my work's tuition program so if I stop now then I lose all the benefits.

But I still feel this nagging need to get another job to bring in more income to pay off our debt so I'm trolling Craigs list, my hometown newspaper and any part-time job postings that I can find. It's overwhelming but I know that there is the perfect part-time job out there for me...I just haven't located it yet.