Pain of Paying by Prof. Dan Ariely of Duke University

Watch this video on the Pain of Paying by Prof.

Dan Ariely of Duke University at https://www.youtube.com/watch?v=PCujWv7Mc8o .
I will download the video as will, He discussed the pain of paying and suggested some ways to increase the pain of paying, such as use cash, receive a notification every time you use your credit card or increase salience.

Now you stop using credit card for this week (of course you use cash) and report whether the increased pain of paying helped you to make better spending decisions. Submit all your receipts (remember use cash) with your submission.