Imagine every day of retirement is like vacation, and start saving that way. That's the advice of Dan Ariely, professor at Duke University, who said millennials vastly underestimate how much they will need in their golden years.
For full interview [click here](https://cheddar.com/videos/why-people-spend-more-in-retirement-than-expected).
Amazon says it had its best Prime Day sales event ever this week with $14.2 billion spent online on Tuesday and Wednesday, up 11% compared to last year.