Read on to find out more.
It's also worth budgeting for the more stressful times. Remember when it's finals time, you often have a lot less time to cook and take care of what you are eating, so it's easy to live on junk. It's good to have the money for the occasional pizza. But it's much better to be getting three healthy square meals a day, and cheaper too, get some ideas at http://startcooking.com.