Set up a merchant account. Service businesses in the past had to generally rely on cash or check—setting up an entire credit card processing system was a thankless, expensive task at best. Using a service such as PayPal makes it possible to accept virtually any form of credit or debit card for your services, and includes dispute resolution should the need arise (and it will arise).
As more people want to establish their presence online no matter what their reason, the demand for WordPress themes and website templates continue to rise. Do you have a talent for designing websites and html coding? If so, you can make big bucks from creating attractive website themes. Create them and then sell them on marketplaces online like ThemeForest and TemplateMonster to generate a nice passive income for yourself depending on just how talented you are.