For the past week we’ve been keeping track of life’s little irritations. Today we use that list to teach you the method Sara Blakely used to come up with SPANX. Trust us, this is one of those 'aha moment' podcasts. (It's at 18:40)

Also on this podcast:

PK learns how to use twitter, Denise has a neat new iPhone trick, an old lady coughs on Elia, we try to understand an amazon scam and Duryan goes in-depth in our second ever ‘Dateline NBC In-Depth Investigation: The Face Mask’

Enjoy! As always, subscribe and tell a friend. New shows Mon-Fri.