Soon afterwards, at the advice of the aforementioned cabdriver, the brothers started selling steak sandwiches instead of hot dogs. By 1940, they had saved enough money to rent space to open a restaurant at the same spot where they had their stand. The two brothers worked at the restaurant for 15 to 18 hours a day for the next few decades while the restaurant was open 24 hours a day. Harry worked at the Philadelphia Navy Yard during World War II before returning to the restaurant.