The ‘All College Electives’ or 'Free Electives ' and Major electives you need in order to complete your degree can play an important role in obtaining jobs and promotions after graduation. YES, those supposedly ‘waste of time’ classes can give you a serious edge over your competition for jobs if you select classes that will provide useful skillsets for down the road. How do you figure out what classes would be advantageous to you, career-wise? Speak with your professors in your major and ask them what courses both in and outside the major would best prepare you for your career path? Listen to their advice and investigate recommended courses. You can also speak with me or another career counselor, but speaking with your major professors is critical for their industry knowledge AND because such interaction will help you build a connection with professors (remember, you will need them as references AFTER graduation).
By the way, you need to do well in those recommended classes, so remember to utilize your college's tutoring services. The tutors there can give you insight into the course material and help you excel on tests. Take care.