What do you drive? Do you pay fuel and have to wait on the carrier to pay to get your money? If you have to pay for fuel and food then $50 won't be enough. Are you positive you'll be back in that amount of time? If you are leaving home with a fresh loaf of bread, full new package of lunch meat, new box of cereal, new jug of milk etc. then $50 would be enough for food provided you aren't eating out more than one or maybe two times off a value menu. $10 per day is no fortune though. How much do you think you need to take with you per day?