Do you use Canva, do you use ChatGPT? Well, these are some of the most popular examples of SaaS or Software as a Service. SaaS have one time price or subscription based plan. You can sell the same service again and again. If you can build SaaS or hire someone to create you SaaS, you can easily generate income on a regular basis. Once you create software and offer it for subscription or a one-time fee, you will be earning money automatically. However, this is not as easy method as you will have to work hard to build your product or spend a lot of money to develop and market the software.