Before you call in an order to a delivery restaurant, make sure you write down everything everyone wants. That way, the ordering process will go a lot easier, you'll be more likely to get what you want, and the restaurant can start preparing your food a bit quicker.

Most delivery restaurants also offer pickup options, which can be a lot quicker and a bit cheaper. Even if you don't get a break on the price for the restaurant, you don't have to worry about a tip for the delivery driver -- and you don't have to wait for a driver to get around to you.

Drivers for delivery restaurants should be tipped at least as heavily as you'd tip anyone who served you in a restaurant: 15% is a good amount. After all, these are people who come right to your door with your food -- you don't have to go to their restaurant to get served.