Okay. So, I've never actually been paid for any design/arty work I've done. In my defense, I've only been doing arty stuff for like a year, and only with moderate confidence for like a month. But! I've had a slight disappointment today in regards to some free work I did and what they are (or more specifically, are not) doing with it, and I've realized that I need to make some rules for myself if I'm going to keep doing free work.
(And these rules apply after I've consulted the "Should I Work for Free" flowchart and it's a YES.)
1. You may not agonize unduly over the work.
2. You may not let free work get in the way of normal work you have to do. Free work is the lowest priority, unless it's for something extremely important or a lot of people will see it.
3. You may not spend lots of money on free work. Strive to spend no money, if possible.
4. You may not spend an unreasonable amount of time on free work, unless, again, it is extremely important or being viewed by many eyeballs.
5. Because it is free work, you will not subject yourself to too much direction or interference. If they want you to do work for no pay, regard it as a chance to have complete freedom with what you make.
6. Free work should be completed as quickly as possible. The more time it is left undone, the more time you have to think about it and let it worry you. Fast turnover is required.
7. Even if it's for a good cause, or a family member or some other deserving person, you are allowed to say NO.