Thank you Anna for the following brilliant idea.
As I am the proud owner of an undergrad degree, a master's degree, and am currently in the midst of master's number 2, I determined that by the time I'm finished I will have earned 219 credit hours which calculates out to a ridiculous 73 classes.
Because I clearly have a surplus, Anna suggested that I sell the excess ones using an online exchange. For a small fee, people can exchange the credits they don't need for credits they do need. In her words, "I could exchange my lit credits for something useful, like physics!"