The Pain of Paying

This is an easy post.  I'd like to call your attention to an interesting video by social psychologist Dan Ariely about "the pain of paying."  The pain is greater when you must pay cash, and when you pay at the time of consumption.  It can influence your decisions about what to buy and your enjoyment of the product.

What's the most socially significant innovation intended to reduce the pain of paying?  I nominate the credit card.