LE CATCH

$95, oasis.andotherbrands.com

I recently borrowed my twin sister's gray cashmere sweater to take on a trip. It's something she wears all the time with just about everything, from winter-white pants to a ladylike pencil skirt to everyday jeans, so as soon as I returned to LA, she demanded it back. (The nerve of her!) This one has the same ease and versatility of her sweater but the sequined sleeves make it something you don't want to just borrow, but steal. I'd wear it with...

1. Oasis sequin sleeve sweater, $95, oasis.andotherbrands.com
2. Chan Luu beaded bracelet, $150, shopbop.com
3. House of Holland houndstooth clutch, $332, asos.com
4. LAMB platform navy suede sandal, $325, piperlime.com
5. Marc Jacobs metallic boucle pants, $975, netaporter.com

Whenever I go to New York, I often feel like I'm arriving at a party that's in full swing, and I am hustling to catch up. At least that's what it felt like when I saw my sister a few weeks ago in the city (where she had spent most of her summer shooting) and noticed the white slippers on her feet. Of course, Celine's Phoebe Philo is responsible for this emerging shoe trend and her pointy toe white wedges from Fall 2012 will surely be a cult item. Initially, white shoes did not strike me as practical/viable. Then I spent a whole day running around with my sister, who actually executed them successfully, kids and scooters in tow, and without too many scuff marks, I might add. They looked fresh and clean (i.e., not at all nurse-like)--and made her look like a knowing up-to-the-minute New Yorker. Here are some fall-friendly options to consider from Tibi, Madewell and Dolce Vita.

$54, payless.com

Every editor worth her Louboutins will tell you that the best black pointy-toe stilettos are the ones you can wear everyday. Such is the case with this black ponyhair pair, which features side scallops and gold heels, and is designed by Christian Siriano for Payless. I'd wear them with...

1. Paul & Joe Sister wool sweater, $200, netaporter.com
2. River Island trench coat, $134, riverisland.com
3. Tory Burch cross-body bag, $425, toryburch.com
4. Christian Siriano for Payless, $54, payless.com
5. Mango trousers, $69, mango.com

$138, jcrew.com

You may recall how I am coveting these Celine pants from Resort 2013. It will be a while before they hit stores, but in the meantime, J. Crew's Jenna Lyons tempts with these color-blocked capris, suitable for now and well into winter. The only thing is I can't decide which color I like better. Thoughts?

$69, mango.com

Last March on the heels of New York Fashion Week I noted the fisherman sweater's omnipresence in the fall 2012 collections. Michael Kors and Derek Lam elevated them into evening statements, pairing them with sparkly and long skirts, respectively. Levi's even jumped on the trend and came out with a version. So, here we are six months later, another round of fashion week coming up again (NYFW is September 6-13), and you can bet on seeing a lot of this of cold-weather staple out and about. I adore this one by Mango because it's not nubby or bulky (i.e., won't add unwanted heft) and it's soft and pliable--perfect on its own or layered over a collared blouse. I'd wear mine with...

1. Mango cable knit sweater, $69, mango.com

2. J. Brand leather biker jacket, $1395, netaporter.com

3. All Saints clutch, $150, allsaints.com

4. 3.1 Phillip Lim booties, $575, shopbop.com

5. Miu Miu floral print crepe skirt, $820, mytheresa.com

When the first cold front of the season blows in, I plan on taking a cue from stylist and editor Giovanna Battaglia and keeping some of my light summer clothes in rotation. Giovanna nails transitional dressing by cold-proofing her strappy sandals and bright print pants with sleek black socks. I'd try this look with bright pants like this Tibi pair or these by Diane Von Furstenberg or Topshop.

$140, topshop.com

I've been longing for sequined leggings ever since a glamorous friend of mine sparkled at holiday party in a pair by Ralph Lauren. These are actually skinny jeans, so they have a casual feel and, cleverly, they're sequin-free on the back and, therefore, more comfortable to sit in. I'd wear them with...

1. J. Crew plaid shirt, $78, jcrew.com
2. Fallon necklace, $315, shopbop.com
3. Topshop army jacket, $96, topshop.com
4. Michael Michael Kors pumps, $100, netaporter.com
5. Topshop sequin jeans, $140, topshop.com

Four members of my extended family just purchased this leather-trimmed Zara biker jacket. Such is the greatness of this fall-ready piece. What makes it so alluring is the hefty gold hardware, the feminine cropped fit, the lightweight October-friendly wool and, of course, the $129 price tag.

$198, frenchconnection.com

Last winter I had a faux fur vest just like this one in heavy rotation. I'd layer it under a green army parka and over a black leather motorcycle jacket--and on several occasions over a sparkly cocktail dress. I love its versatility and how the plush white fur brightens up anything winter-drab, plus adds a luxe touch. I'll be working it again this coming season with...

1. Iro leather trimmed biker jacket, $670, netaporter.com

2. French Connection faux fur vest, $198, frenchconnection.com

3. 3.1 Phillip Lim clutch, $295, shopbop.com

4. Forever 21 fringed boots, $34, forever21.com

5. Iro printed jeans, $365, netaporter.com

It's official: the turtleneck is fall's newest staple. Designers like Phoebe Philo at Celine and Raf Simons at Jil Sander resurrected the turtleneck last year by layering it under feminine pieces, like a silk blouse and dress. This season Phillip Lim, Erdem, and Alexander Wang rendered the white staple in various colors, patterns and textures. I'm buying into the turtleneck trend, because it's functional (i.e., will keep me warm) and stylish, plus it will allow me to extend the life of some of my warm-weather pieces. I will wear a turtleneck layered under everything from a short sleeve top to a sleeveless dress, or simply on its own. Here are a few of my favorites from J. Crew (it's tissue-thin and therefore made for layering, and I also LOVE this striped one), Altuzarra (the ultimate statement) Gap, Splendid (especially cute under a white lacy dress or delicate Victorian-inspired top), and Tory Burch (a striking stand-alone piece).

Photograph: Phil Oh