Calling all certified mechanics. Put your automobile repair skills to work for you and start a business that teaches students how to do general maintenance on their cars and trucks. The auto maintenance courses could be conducted in association with a community or educational facility, such as a community college, or on an independent basis by leasing a small work and training space. Course instruction can include how to change your oil, change a flat tire, and carry out regular brake and steering checks, as well as any other small automotive related maintenance tasks. Providing you can secure ten paying clients per week for a three-hour auto maintenance class and charge the students $50 each, this great part-time business would generate sales in excess of $2,000 per month.