Is Denny's Free Grand Slam Breakfast Really Worth Your Time?
As anyone who watched the Super Bowl knows, Denny's is offering free Grand Slam breakfasts today from 6 a.m. to 2 p.m. We thought it made sense to revisit John Stuart Mill's concept of opportunity cost -- use this handy chart to figure out whether Denny's "free" is actually worth your while.
Read more in "Denny's Complimentary Grand Slam Only 'Free' To Those Who Can't Do Math."
































