Subway is the place where you can feed yourself for the whole day, especially when you are traveling for limited budget. All over the places I've ever been Subway helped me to survive. Moreover Subway has a lot of discounts. For instance, you can buy one 6inch sub with fountain drink and get another one for free. Also, save your receipt, usually on the backside is written to make survey and get cookie for free; I like their chocolate cookies with mms.