My Key Takeaways: 

1: Several things can affect pricing, such as time spent, materis used, who owns the rights, size of client (bigger clients will take longer and make you work more), use of product (is it on a mug or a bilboard), and how many revisions are made.

2: It is very important to know what you might want to charge a client and what factors might influence that before you walk into a negotiation. Know that your time and effort holds value and what compensation you deserve (whether that be monetary or by barter system).

3: Send an invoice if you want to get paid and get samples of the final product for your portfolio whenever possible.