For those of us working the cost of lunch can quickly escalate, especially in high cost of living parts of the country. Ideally one would want to bring lunch most days or re use leftovers. If you do go out and grab something, split something with a work colleague. You both get an instant 50% discount on the price and number of calories. Added bonus is better productivity. You may feel less lethargic after the meal due to the reduction in calories.