Key Takeaways: Think of business casual as business smart. Use good judgment ... a dressed-down look often reserved for Fridays can now take many working women through the entire workweek.

Now is the time to ditch the loungewear and master the tricky smart-casual dress codes that'll be stamped above most events ...

Queen Letizia opted for smart casual for today's outing ... with her make-up in her typical natural style. Her daughters - Leonor and Sofia - were both in blue jeans, with the elder opting ...