Don't use a pizza delivery fee as an excuse not to tip your driver.

While the fees have ballooned to $2 to $3 in recent years, that money doesn't necessarily go to the person delivering your pizza, reports Dave Jamieson at The Huffington Post.

"In addition to their small hourly wages, delivery drivers get reimbursed for the cost of wear and tear to their cars, but the reimbursement rate has nothing to do with the delivery fee," Jamieson writes. "In fact, it usually adds up to about half the fee that customers are charged. Some customers, meanwhile, spot the delivery charge on the receipt and decide to skimp on the tip."

This screws over drivers, who rely on tips for the majority of their income.

Jamieson also notes that the delivery fees have spurred lawsuits from drivers who believe it's unfair that the company collects a fee and keeps it.

But Jeremy White, editor of Pizza Today, tells HuffPost that the fees are necessary.

"The extra charges help cover the additional cost of liability insurance, not to mention more employees, uniforms and the heated delivery bags that chains use," White said.