Often employers desire their employees to have prior work experience. An excellent way to get work experience is through internships. Internships also give students the opportunity to learn more about a particular field, job, or area. Internship Services (Davidson Honors College 002, 243-2815) can help you find an internship, whether the internship is for the summer or school year. It is often possible to find internships both locally and out of the area.
Look also at the list of websites with internship opportunities for undergraduates maintained by the American Mathematical Society.