Mr. HALL: I think that's really an important thing, having been unemployed twice in my lifetime.

NPR: Expert Helps Makes Sense of Stimulus Package

"That kind of stuff only happens to a perfumer once or twice in a lifetime, " said Turin.

CNN: STORY HIGHLIGHTS

Of course selling a fridge once or twice in the lifetime of a consumer is not the high recurrence business model of sugar-water vendors targeting impressionable children and exploiting their apetite for sugar and instant gratification.

FORBES: Move up http://i.forbesimg.com t Move down

If you go back before the television age, in the early half of the last century, if you lived in a small village you probably would never travel abroad, you'd probably never even travel to a big city more than once or twice in your lifetime.

BBC: Anne the Elephant and the end of circus animals

An experienced worker laid off when unemployment is at 9% faces a reduction in lifetime earnings nearly twice that of someone sacked when the rate is 5%: a loss of 20% on average, according to new work by Steven Davis and Till von Wachter.

ECONOMIST: An intractable problem is getting worse

Andreessen: Fab, a company in New York, has a lifetime value of people who sign up with Facebook that is twice that of people who sign up elsewhere.

FORBES: Facebook Live: Charlie Rose Interviews COO Sheryl Sandberg, VC Marc Andreessen