Luke's Hospital, said they had treated eight people, six of whom were walk-ins with minor injuries.

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"At least 75%" of her regular customers are walk-ins, many of whom shop in her store as often as five times a week.

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Luke's Hospital, which is near the scene of the fire, said they had treated eight people, six of whom were walk-ins with minor injuries.

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Many classes are geared towards locals rather than tourists, although the NYC Hip Hop Dance Company welcomes walk-ins at its weekly lessons near Times Square.

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As for nearly all retailers, the fourth quarter of 2012 was clearly the top sales period. 63% of appointments were walk-ins, and the company sold 252 monocles in 2012.

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It turns out that in addition to the potential for walk-ins by significant others and soul-crushing lack of self-respect in the morning, would-be Internet Lotharios now have to worry about being blackmailed.

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They keep half of their seats open for walk-ins, but even so there is often an hour wait -- just the right amount of time to have a few apertifs and spark mischief.

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Or to get more walk-ins to your store?

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Larger walk-ins came into fashion in the 1980s.

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