On Hump Day and amid an intense focus on stocks with names like McGraw-Hill (MHP) and Green Mountain (GMCR) it figured Wall Street would finish flat as a pancake. The Post Office announced it would end Saturday delivery and adding insult to its considerable injury Post-it maker 3M Co. (MMM) promptly surged 1.18% to hit an historic high while Pitney Bowes (PBI) up 2.82% can also afford to keep the meter running. (Completing Cliff Clavin’s trifecta of woe  Wells Fargo (WFC) originator of the Pony Express advanced on upbeat analyst comments but at least the company famous for saying “You’ve Got Mail!” rates only a lukewarm research ...