For centuries scientists, science writers and philosophers have encouraged us to trust our common sense (Lilienfeld et al., 2010; Furnham, 1996). Common sense is a phrase that generally implies something everyone knows. One of the definitions of common sense given by Wikipedia is, “good sense and sound judgment in practical matters.”Common sense psychology is a myth. What appears to be common sense is often common nonsense. Scott Lilienfeld, co-author of 50 Great Myths of Popular Psychology, says we should mistrust common sense when evaluating psychological claims (Lilienfeld et al., 2010).Some examples of common sense psychology include:Working while in high school will help students build character and value money.Children who read a lot are not very social or physically fit.People with low self esteem are more aggressive.The best way to treat juvenile delinquents is to get tough with them.Most psychopaths are delusional.We know what will make us happy.Tune in and learn how to access your own common sense!