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Which is the best month to buy a pair of jeans? The best time of day to have your picture taken? The best day of the week to fly?

WHEN gives the answers to these and hundreds of other questions -- 352, to be exact -- that ask the best times to buy and do all sorts of things.  Knowing the best times can save you a ton of money and an enormous amount of time. And who wouldn't want to do that?

The content in this app (WHEN) comes from the New York Times best-seller Buy Ketchup In May And Fly At Noon, by Mark Di Vincenzo, who interviewed dozens of experts and put all these great tips all in one place.

Now they're at your fingertips.

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