Are you in high school or college? I would check with your counselors or someone. We have a "carreer center" or something in my high school.
I know some people who have part time jobs, and they are good students, but the job takes a lot out of their studying time. Im sure you can find something that fits in your schedule, though. Personally, I don't think its worth it, but it really depends on what you need.
PS. where in the NW are you?