Food waste at buffets goes way down if the plate or the box size is reduced a little, because on the smaller plate it looks full but in the big box it looks half empty, so we put more in.
Otpad od hrane na bifeima uvelike se smanjuje, ako se veličina tanjura  ili kutija malo smanji, jer manji tanjur izgleda puniji hranom, dok ogromna kutija izgleda praznija, zato ju više punimo hranom.