Henke found out, much to his delight, that Springsteen is something of a pack rat.

FORBES: On the Streets of Philadelphia: Constitution Center Hosts Bruce Springsteen Exhibit

You do not have to be a pack rat or hoarder to want to get more organized this year.

FORBES: De-clutter, Detox & De-dupe: a recipe for success in the new year

The lesson is clear: Don't be a pack rat.

FORBES: How To Be A Pack Rat

Brodeur, one of the top goaltenders of his generation, is also a memorabilia pack rat.

WSJ: Devils: Martin Brodeur Is Making a Different Kind of Save

How about a hot pair of cat-eye glasses, a Rat Pack-inspired suit, or a cocktail dress worthy of a femme fatale?

BBC: Vintage Las Vegas

Piotr Beczala as the Duke was a breezy, sleazy leader of the Rat Pack, a Frank Sinatra-type lurching from bender to hookup.

WSJ: Mayer's 'Rigoletto,' set in Vegas, opens at Met

"I don't like it when it's a rat-pack bar" filled with a wall of liquor bottles and lined with bar stools, says Mr. Smith.

WSJ: Creating a Dining Room With Wow Factor

Gather your rat pack for a weekend of games and glamour at this newly renovated Vegas landmark, now featuring South Beach-inspired rooms, three gourmet restaurants and the hottest poolside club east of the sun (and west of the moon).

BBC: Daily deal: Scintillating sights in Sin City

The D opened last fall with a unique mix of hipster trendiness and retro Rat Pack old Vegas flair, and to accomplish this, it has one of Sin City's only two-level casinos.

FORBES: The D, Las Vegas

For a scandalous story or two, head to the bar -- bartender Johnny has been pouring martinis since the Rat Pack ruled town.

BBC: Vintage Las Vegas