I did this for a short time, but one more important lesson I learned: The more $ you charge, the better you get treated by customers. The less $ you charge, the more abuse you take from customers.
Also, once you get good rates, you ask for a higher rate from the next customer. If it is higher than their highest rate they tend to tell you what their highest rate is which gives you a great place to negotiate from. Like, maybe I'll take less if I can work remote 2 days a week.
