Like graphic design, Web design requires skills that can take years to acquire and perfect. But if you have them, the market is there for creating attractive, useful Web sites for all sorts of organizations. Starting a Web-design business does require some up-front investment, particularly in software, although candidates to start Web-design firms might have those applications already.
I have a friend that is the city manager of a town of about 25,000 where his main task is processing requests for building permits. Actually a volunteer-type job, no salary. But he makes a bunch of contacts every day, and his address book is huge. So he is busy all year except the Holidays. To fill in this time he started a Christmas tree lighting service (houses, lawn ornaments, etc.). In this 3-month period he makes enough to keep him going the rest of the year.
Many popular businesses, such as Microsoft and Apple, started their journey in a garage. If you have similar aspirations, start the process by learning how to start a small business at home. The process is similar to opening a brick-and-mortar business—sometimes with lower startup costs. Some of the steps are different, such as the need to obtain an at-home business license and learning online marketing.