Updated:When the temperatures drop, the prices at Mather's LifeWays restaurants do too. The Chicago-based eatery is selling a bowl of soup for the same price as the Fahrenheit temperature outside. Prices will change daily ... But since Chicago is notorious for it's cold winters, you can bank on a cheap meal here. When the temperatures are below zero, the restaurant says it will offer customers money back! The promotion runs until the end of February.