Sales graphs are my bread and butter. They’re pretty easy to draw, there’s tons of good material, and they sell well.
That being said, when you do as many as I do, you can easily get bored with them. So every so often I challenge myself to come up with something really different.
For example, in the cartoon above I decided to do a sales graph cartoon without a sales graph. It takes considerably more time and effort for the writing, but the end product is worth it.