On Monday, I released the show on new cars vs used cars. It became clear to me while doing that show that I really needed to do an in-depth discussion of the concept of Opportunity Cost.
If you understand Opportunity Cost you can easily help people to make better decisions.
All of us make decisions based on what we value. Every transaction is based on each party involved preferring what the other has more than what he/she has.
Good decision making is largely based on simply understanding all of the options that each of us has, considering the various scenarios, and then choosing which scenario is most ideal for our circumstances.
In today's show I add some serious meat to this idea with a bunch of pertinent examples:

Car-buying options
College options
Housing options
Eating and moving options
Options on where we live
Family options
And more!

At the end of the day, you control your own life. Consider your decisions carefully and simply make the decision that is best for you.
Joshua
Links:

Support the show on Patreon: http://radicalpersonalfinance.com/patron
Russ Robert's article on Opportunity Cost: http://www.econlib.org/library/Columns/y2007/Robertsopportunitycost.html
100 Countries or an SUV: http://chrisguillebeau.com/100-countries-or-an-suv/