Fashionista Patricia Field Reveals How to Update Your Style

— -- Patricia Field is the woman responsible for Carrie Bradshaw’s stylish wardrobe on “Sex and the City.”

She’s also the mastermind behind the styles sported by Anne Hathaway and Meryl Streep in “The Devil Wears Prada,” and the stylist who came up with that infamous poncho in “Ugly Betty.”

“Good Morning America”’s Rachel Smith took a walk through Field’s eponymous New York City boutique.

More than a decade after “Sex and the City” went off the air, Field is hard at work on a new TV show – “Younger” – on TV Land.

The show tells the story of a 40-year-old woman (played by Sutton Foster) who poses as a 26-year-old in a bid to reboot her career. The key to her disguise is her quasi-hipster duds.

“The script says her husband left her for a younger woman, but left her broke, squandered their money. So she has financial problems. So she's not going to Bergdorf Goodman or Barneys or whatever. She's--where is she going? Maybe she--would go to a vintage store, maybe even a thrift store,” Field said.

Among Field's go-to "hipster" staples: plaid shirts, oversized men's Blazers, motorcycle boots and motorcycle jackets.

Field says “Younger” is not only clever TV viewing. She says it also provides a fashion tutorial, reminding people of the importance of mixing things up and taking some chances on their everyday wardrobes.

“Take a good -- new, fresh look at your closet,” she said. “And start putting and trying on things that you haven't combined before, because you might surprise yourself. Put on a shoe that you think is too dressy for your jeans and all of a sudden it might look really cute.”

Try, she said, pairing “a basic Hanes T-shirt with a string of pearls. It's putting those things together that--are in the formula that don't go together.”

Field is adamant that style doesn't need to cost a lot of money. Style, she says, isn't about acquiring expensive fashions. Instead, she says, it's "about passion and desire."

Among the biggest mistakes women make when they get dressed in the morning? "The rush," Field says. Even if a woman is very tired, Field says, "try to think about what you're going to wear the night before."

Field also says women should break out of routines, and not reach for the same rotation of outfits every week.

Finally, Field says, women should not be slaves to trends. "I don't follow trends," Field says.

Field outfitted Smith in three unique looks. For the look dubbed "Gotham Girl," Smith wore a plaid skirt, long knee socks and a hat.

For the look called "Hipster in Paris," Smith wore star-spangled skinny jeans, a red beret and a plaid shirt tied around her waist.

In the third look, "Sophistication Gone Wrong," Smith donned a demure, soft black skirt with a rhinestone, beaded t-shirt.