There are restaurants in which a visitor pays for food as much as he considers necessary or may not pay at all. This is the Vienna restaurant Der Wiener Deewan, the drinks in it have fixed prices, but the customers themselves decide how much they will pay for the lunch. Similar terms of payment can be found at the Lentil as Anything restaurant chain in Melbourne, Australia, where visitors pay for what they can afford or what they consider a fair price based on the quality of the food. One World Coffee in Salt Lake City (USA) and SAME Cafe in Denver (USA) not only allow customers to pay as much as they want for lunch, but also to determine the size of the servings themselves. Only one question. After how long would they break up? Now you know where to rest well saving on food.