New York: Diane Von Furstenberg
Best known for her Wrap Dress, the Belgian-born designer arrived in New York in 1972. These are her favourite places in the Big Apple
Scoop
Scoop is the best place to buy jeans from up-and-coming denim designers. 430 W 14th St; scoopnyc.com
Christian Louboutin
I met Christian Louboutin a few years ago and since then I have never stopped wearing his shoes. He is a genius shoemaker. Other shoes don't even comes close. 59 Horatio Street, +1 212 255 1910; christianlouboutin.fr
Pastis
With its tiled floors, wood-panelled walls, zinc bar and antique mirrors, Pastis in the Meatpacking District is a great place for lunch. I always order steak frites and a glass of Burgundy, and pretend I'm in Paris. 99th Ave, +1 212 929 4844; pastisny.com
Banchet Flowers
Banchet in the West Village is the best place to buy orchids in New York and its Flower Bar is the perfect refuge for sipping tea or Champagne when the shopping gets too much. 809 Washington Street, +1 212 989 1088; banchetflowers.com
Tracie Martyn
A former Hollywood make-up artist, Tracie Martyn's shop is one of my favourites. Her products use only organic ingredients, and her facials leave your complexion flawless. It's well worth investing in her Firming Serum ($185). 59 5th Avenue, +212 206-9333; traciemartyn.com
Eres
For lingerie, I adore this French boutique. It has wonderful boudoir-style lingerie, soft-boned corsets and gorgeous bodysuits. 621 Madison Avenue, nr 58th Street, +1 212 223 3550; eresparis.com
All that glitters
Whenever I want to change my luck, I change my jewellery. For modern pieces, head to H Stern. Or for antique jewellery, I love A La Veille Russie in the Sherry Netherland Hotel, H Stern, 645 Fifth Avenue at 52nd Street, +212 688 0300, hstern.net ; A La Veille Russie, 781 Fifth Avenue, +1 212 752 1727, alvr.com
Resurrection
This is where I go for vintage pieces you can't find elsewhere. They have a vast selection - from mod Pucci dresses and Halston formalwear to Gucci handbags and Courrèges jackets - that has inspired many a designer. 217 Mott Street, +1 212 625-1374; resurrectionvintage.com
Alan Moss
For dazzling chandeliers, mirrors, ceramics and sculptures, head to Alan Moss. I decorated my last apartment almost entirely from his store. 436 Lafayette St, +1 212 473 1310; alanmossny.com
Katz's
This is the oldest deli in New York, used for that infamous When Harry Met Sally scene. I stock up weekly on their melt-in-the-mouth pastrami. 205 E Houston St, +1 212 254 2246; katzdeli.com
The Waverly Inn
Owned by my friend and Vanity Fair editor Graydon Carter. Everyone goes, from fashion editors to Hollywood stars (Demi Moore and Ashton Kutcher are regulars). You'll have to be speedy: they don't take reservations and it has become notoriously hard to get in. 16 Bank Street, +1 212 243 7900
Where to stay
Part of the fun of New York is staying in the best hotels. My favourites are the Carlisle, The Gramercy and The Mercer. Carlisle Hotel, 35 E 76th St, +212 628 3886 ; Gramercy Park Hotel, 2 Lexington Avenue, +212 920 3300, gramercyparkhotel.com ; Mercer Hotel, 147 Mercer Street, +1 212 966 6060, mercerhotel.com
Miami: Julien Macdonald
The Welsh-born designer, star of Chanel and Givenchy, was taught to knit as a child by his mother, and the rest is fashion history. He picks his favourite places to shop, eat, drink and stay in Miami
Scoop
For quirky fragrances and exclusive new collections by the latest designers, head for Scoop at the uber-cool Shore Club. Last time I was there, Bruce Willis, Madonna and Catherine Zeta-Jones were all hanging out by the pool. 1901 Collins Avenue, +1 305 695 3100; shoreclub.com
Base
This is a fabulous retail emporium that sells great clothes, accessories, music, books and homewares. 939 Lincoln Rd, +1 305 5314982; baseworld.com
Tomas Maier
This hip 1930s-style bungalow is great for quirky menswear from Rick Owens to Marni. I love Maier's swimwear and cashmere. 1800 West Avenue, +1 888 373 0707; tomas maier.com
Sasparilla Vintage
For the best vintage Fiorucci, Gucci and Chanel, check out Sasparilla Vintage. 1630 Pennsylvania Ave, +1 305 532 6611
Joe Stone's Crab
This is one of my favourite haunts. It opened in 1913 and is one of the oldest restaurants in the whole of Florida. Unsurprisingly, their specialities are stone crab claws. It's a first-come-first-served kind of place, so get there early to get a table. 11 Washington Avenue, +1 305 673 0365; joesstonecrab.com
11th Street Diner
For the best cinnamon coffee and famous Floridian Key lime pie, head to the original Art Deco 11th Street Diner on South Beach. 1065 Washington Avenue, +1 305 534 6373
Arrive
For great menswear, Arrive has labels from Alexander McQueen to Y-3. Plus stylish luggage, shoes and art books. I stock up on their vintage designer sunglasses. 100 16th Street, +1 305 604 5818; arrivemiami.com
The Tides
For post-shopping recuperation, indulge yourself in the true Miami-style glamour of The Tides, the most elegant Art Deco hotel on the beach. They do a great Bellini, and nothing beats the people-watching there. 1220 Ocean Drive, +1 305 604 5070; tidessouthbeach.com
Where to stay
The Delano has unrivalled style and the best Apple Martinis. I sipped Champagne in the Rose Bar alongside Oprah. 1685 Collins Avenue, +1 305 672 2000; delano-hotel.com
Sydney: Collette Dinnigan
In 1995, Dinnigan's delicate, feminine designs earned her the invitation to become the first Australian-based designer to stage her own show in Paris. She reveals her favourite haunts in her Sydney hometown
David Jones
For make-up, cosmetics and perfumes, David Jones is my one-stop shop. It is the oldest department store in Australia, established in 1838. They have a fabulous selection of MAC, La Mer and Annick Goutal. 86 -108 Castlereagh Street, +61 (0)2 9266 5544; davidjones.com.au
Kookaburra Kiosk
Kookaburra has a fabulous range of vintage and retro clothing. 112A Burton Street, Darlinghurst, + 61 (0)2 9380 5509
Valonz
Valonz in Paddington does fantastic blow-drys, great colour and is the best place to go for manicures and eyebrow shaping (ask for Ali). Renya Xydis, the creative director, works closely with Vogue and does a lot of international fashion shows. +61 (0)2 9362 9954
Fratelli Paradiso
The penne with veal ragu, and the zucchini-flower-and-fontina risotto are magnificent. 12-16 Challis Avenue, Potts Point, +61 (0) 2 9357 1744
Dinosaur Designs
I love their distinctive bowls, plates, and vases. I recently bought white polished ceramic salad servers and bowls. And I can't resist their resin jewellery.77 Strand Arcade, +61 (0)2 9223 2953; dinosaur designs.com.au
The Tim Olsen Gallery
I love the Tim Olsen Gallery for its eclectic range of artists. The last time I visited I bought a series of sketches by John Olsen, who is probably Australia's most successful living painter. 76 Paddington Street, + 61 (0)2 9360 9854; timolsengallery.com
Skipping Girl
Madonna, Gwen Stefani and Nicole Kidman are fans of these handmade Australian bags. 124A Roscoe Street, Bondi Beach, +61 (0)2 9365 0735; skippinggirl.com
Alimentari
I'm always popping in here for their wonderful coffee, fine Parma ham and freshly made pasta. 2 Hopetoun Street, Paddington, +61 (0)2 9358 2142
Sean's Panaroma
Nothing beats the salad and fish at this surfer's restaurant. 270 Campbell Parade, Bondi Beach, +61 (0) 2 9365 4924
Where to stay
The Park Hyatt Sydney is right on the water's edge with great views. And the boutique Establishment Hotel has impeccable service, great sushi and a very hip bar, Tank. Park Hyatt, 7 Hickson Road, The Rocks, + 61 (0)2 9241 1234, hyatt.com ; The Establishment, 5 Bridge Lane, +61 (0)2 9240 3100
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