What kinds of jobs do people have before going on to get a degree in Clinical Psychology?

In many cases, workers take on starter jobs as they prepare for their targeted career. For example, one might work as a chef at a restaurant while saving up to take advanced culinary classes, while a business person might start as an intern at a corporate business as he or she saves up for grad school in business. What is the equivalent for someone going into Clinical Psychology? Because volunteering does not generate money, I'm wondering what type of paid experience is relevant to the job.