Sometimes something I read just strikes me as incredibly smart and useful in its simplicity. The most recent article to fit that bill is published in this month's Details magazine.
"Don't make a speech before one glass of wine, or after four. And keep it sweet. People are always trying to make jokes when they toast, and they just wind up sounding like insults.
On crying at work:
Maybe if your father dies. Otherwise, no way. If some bastard fires you, don't cry. Yell.
On dressing for bad weather:
A cheap umbrella is a nasty thing. Buy two nice ones - one for your home and one to keep at your office. Get a third in case someone beautiful ever wants to borrow it. And if your shoes are Italian, never wear them in the rain or snow. If they are from some other country, do whatever you like.