Attention shoppers: It might pay to just sleep in this Black ...

Made popular by members-only shopping Web sites like Gilt, Rue La La and HauteLook, the sales give consumers a now-or-never incentive to buy, and are a less conspicuous way for stores to sell designer merchandise at a discount. ... “We're not going to be like the mall jeweler, so you're not going to see 50 percent off the entire store.” Across-the-board sales are the specialty of the nation's biggest big-box stores and Web sites, and they, too, began discounting before ...