Acquire New Skills
One of the reasons to get a part-time job while in college is to learn new skills. Even though you may only be working a few hours a day, you'll gain valuable experience that will help polish your professional work ethic. Carrying a part-time job while taking classes can also help you learn to manage your time efficiently. You'll also pick up valuable skills that typically only come through a job, like dealing with problem co-workers or getting on good terms with your boss. These are all skills you're going to need later in life, so you might as well start now, while you're still young enough to get away with making some mistakes.
Gain Valuable Experience
It's a wise decision to gain professional experience prior to graduation. Potential employers tend to look for job applicants with work experience, especially in a competitive job market. Even one job reference will give you an advantage over applicants with no work experience at all.
The best way to find out if you'll enjoy the career of your choice is by getting your foot in the door as a part-time employee. For instance, if you want to be a medical doctor, you may want to get a part-time job as a receptionist at a hospital to learn the ins and outs of the medical field. You'll experience work in your chosen setting, and you'll know firsthand whether or not a career field meets your needs before making a major life decision.
Getting a part-time job can help you meet people outside of school and your existing social circle. You'll also have the opportunity to connect with professionals who can eventually serve as mentors or references for future jobs. Make sure you build an impeccable rapport with your co-workers by being hard-working and reliable.
You should start going to your campus career center as soon as possible, even if you already have a job.