Now, this is thinking out side the box

Seems there is a teacher near San Diego, CA that has been offering parents and some local businesses the chance to place quotes or ads on his Math quizzes and tests. He charges for these ads and uses the money to cover the cost of printing up these quizzes and tests. What an ingenious idea.
Instead of complaining about his shrinking printing budget this teacher has solved that problem with some creative thinking. Hats off to him.

Cash-strapped teacher sells ads on tests