Two really important things to think about as you write and produce your books, global and free.
One, everything we do on-line is global, always think can I sell this in Japan, England and the town next door. It is a huge market out there.
Second, almost everything I mentioned is free or almost free. You can publish, print and promote all for free. Yes your time cost something but hopefully what we are writing about is something we love so it isn’t such a big effort. For almost no money we have access to the world, there are a lot of customers out there.