One of the things that got my attention on Shannon Mattern web site (www.wp-bff.com) was the honest, personal and direct way Shannon writes. But even more impressive is the fact that she explains every month, in a very detailed way, what are her revenues and expenses. You can get a spreadsheet with this information here. For anyone that may have doubts about how to make money with a side-hustler Shannon's web site is an amazing resource. The fact that on average her monthly Net Income is close to 7000 USD is also a concrete example how a side hustle can one day become a full-time business.