My job is boring and the pay is crap - what should I do?

Ok, I'm currently working at a university library. I have an MA in History, but couldn't find anything in my subject area and took a job at the library to pay the bills. It's barely over minimum wage and so boring that it makes me tired and iritable. Plus, my supervisor, who I used to like, drives me crazy. To get a decent wage in a library, you need to have MLIS, but that's another two years of study, which I can do for free online through the University, but that means sticking around this town and in this job for another two to two and a half years, and I just don't want to do that. I live in a small Southern City ages from anything cool and I'm sick to death of it. My husband has been offered a job at the University when he graduates, and in some ways it's a good opportunity, but I'm afraid of being stuck here. Plus, if I'm this bored in a library now, I can't imagine working in one for life. But I'm afraid of being stuck in menial jobs if I don't do the MLIS.