Sarah's hobby soon developed into a reliable source of income, enabling her to follow her passion and supplement her income. 2. Mike's Story: Mike discoverrummuyed he could considerably boost his income by carefully selecting when and where to drive while working a full-time job. He had been driving for Uber on a part-time basis. By analyzing peak hours and busy areas in his city, Mike was able to maximize his earnings by focusing on driving during high-demand times.