Bad news, ladies: You might have to trash the Manolos and the Jil Sander ensemble. Instead, break out the sensible Ferragamo pumps and head to the nearest Talbots for some royal blue suits. And while you’re at it, stock up on the extra-hold hairspray.

If you want credibility in the workplace, there’s only one tried-and-true style model. “Put down the self-help books and rush out to see The Iron Lady this weekend,” advises More magazine. “That Margaret Thatcher — she’s the one you want to emulate.” On both sides of the Atlantic, Thatcher is being hailed as the originator of the power look for women.