TREND: Black and white striped dresses

WHO’S WEARING IT: Kim Kardashian, Milla Jovovich & Hilary Duff

HOW TO WEAR IT: The contrasting hues are so striking and chic, it's no wonder they're such a hit with celebs. Since horizontal stripes can be unflattering on most body types, make sure you belt your waist. Otherwise, diagonal or vertical stripes are the way to go! Halloween tip: We're going to pair our striped frock with black over-the-knee boots for a sexy jailbird costume!

Shop the steal 'n' splurge below!

Pavina's stylish handbag holders are an absolute must-have. The Swarovski-crystal-encrusted pieces were designed to hook onto any table and hold up your purse (up to 25 pounds). No more placing your bag on the unsanitary floor or hanging it on your chair for just anyone to snatch up. Tote-al genius!

The adorable accessories, which are shipped with a metallic pouch and gift box, run between $45 and $60. However, mystyle users can save 20 percent on the entire collection from now through Nov. 30.

Head over to mystyle's Exclusive Discounts gallery for the promo code!

TREND: Long-sleeve leopard-print dresses

WHO'S WEARING IT: Paris Hilton, Kim Kardashian, Michelle Trachtenberg

HOW TO WEAR IT: Last summer, we spotted colored leopard print in the form of minis, tops and even gowns. This season, it's all about the long-sleeve dress. Winterize the popular piece with black tights and accessories.

Shop the steal 'n' splurge below!

Last Friday, Michelle Obama appeared on The Jay Leno Show wearing one of our favorite dresses in her wardrobe: the rose-print Thakoon dress she debuted at the first presidential debate more than a year ago. 

She was there to answer questions for the "Ten at Ten" segment. No, Jay didn't ask any fashion-related questions, as we would have liked—unless you count what daughters Malia and Sasha would be wearing for Halloween. (She said that was top secret!) Still, it was so wonderful to learn that Michelle had a terrifc sense of humor on top of an impeccable fashion sense. ("We don't have enough time," she joked, when asked about Barack's most annoying habit.) Plus, we enjoyed seeing her flash that gorgeous smile of hers the entire time. 

Watch the clip above to see what we mean. Then, visit mystyle's Michelle Obama: Shop Her Style! gallery to get the look of her lovely Thakoon dress for just 30 bucks!

TREND: Spiky studded heels

WHO'S WEARING IT: Lauren Conrad (Aldo), Katie Cassidy (Rock & Republic) and Kara DioGuardi (Rock & Republic)

HOW TO WEAR IT: The prickly pumps are all about classic in the front and rock 'n' roll in the back. Keep the spikes a showstopping surprise by wearing the shoes with a feminine mini.

Shop the steal 'n' splurge below! Then, keep reading to see how the stars styled the trend.

Exo-Flex offers vibrantly funky skins and screen protectors that will revamp and protect (no fading, peeling or bubbling up) all of your electronics, from your Blackberry and Kindle to your laptop and Wii.

The designs are already superaffordable—nothing costs more than 20 bucks!—but from now through Jan. 20, mystyle users can save 50 percent on the entire line. What's that? You're welcome!

Head over to mystyle's Exclusive Discounts gallery for the promo code!

On November 14, H&M stores will be flooded with women fighting over the new Jimmy Choo collection. We're guessing it will make the Matthew Wiliamson launch look like small potatoes. Because really, what fashionista wouldn't die over the chance to buy red strappy Jimmy Choo sandals for $99?

The retailer is prepared for chaos. On their site, they've compiled a mini how-to-shop guide, explaining that the first 160 people in line will receive a bracelet that denotes a specific shop time. After two hours, the Jimmy Choo for H&M collection will be open to all customers. But nobody, not even the VIPers, is allowed to buy duplicates of the same product. So, sorry, but you and your friends can't have matching faux-fur jackets unless you shop together—and arrive at the crack of dawn. In New York, one girl got in line the night before in order to make sure she got her manicured paws on the Matthew Williamson collection. Fashion trumps pain when there's a deal of a lifetime.

Paris Hilton and Katie Cassidy were both caught wearing the same dress. Cue the obligatory "Oh, no she didn't!" Tell us who you think looked better in mystyle's new fun Style Showdown gallery.

Stars are heating up their cold-weather-chic outfits with leopard-print ankle boots. Shop this fierce spotted bootie for under 35 bucks!

Pamela Anderson makes a little girl carry the train of her fugly dress. WTF? The bigger question is, "What was that poor child thinking?"

On our Shop-It List this week? These pyramid-studded metallic headbands. They're only $6. 'Nuff said!

TREND: Textured skirts

WHO'S WEARING IT: Beyoncé and Alexis Bledel

HOW TO WEAR IT: From ruffled zippers and rosettes to croc print and fur, a textured skirt will give your look some visual interest. Just be sure to tuck a nonfussy top into the bottom—you don't need any more added volume on your figure. Wear simple yet sexy heels to elongate your gams.

Shop the steal 'n' splurge below!

TREND: Leopard-print ankle boots

WHO'S WEARING IT: Rihanna, Kelly Rowland and Whitney Port

HOW TO WEAR IT: The fierce feline kicks will spice up fall's blacks and grays. For a look that's all about pure animal magnetism, wear the spotted shoes with a sexy black bodycon dress. Then, add a little splash of color with a purple clutch or yellow skinny belt.

Shop the steal 'n' splurge below!

Fall is all about accessorizing. Lucky for us, this ostrich faux-leather handbag is now only $18—that's 81 percent off the original price. Zomg! We'll take two, please! We're going to wear the brown satchel with a navy sweater, jeans and matching boots. To give the neutral tote some personality, we're also going to tie a printed scarf on one of the handles.

Shop this budget-friendly bag and more great deals in mystyle's Top Steals of the Week gallery!

Michele Baratta Jewelry offers an array of charming handcrafted pieces—everything from freshwater pearl necklaces to semiprecious stone bracelets. But the real gem of her collection is the beautiful line of photo frame jewelry. The special pieces are a great way to keep loved ones fashionably close!

The collection ranges from $20 to $279, but mystyle users can save 20 percent on the jewels indefinitely.

Head over to mystyle's Exclusive Discounts gallery for the promo code!

TREND: Watercolor dresses

WHO'S WEARING IT: Alicia Keys (BCBG Max Azria), Leighton Meester (Louis Vuitton) and Thandie Newton (Matthew Williamson)

HOW TO WEAR IT: Watercolor dresses don't scream cold-weather chic. So winterize them with lots of black—black tights, black pumps, black bag, black jacket, black belt. Just think twice about wearing black socks with black shoes à la Leighton. That's one artistic statement not everyone will understand.

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For three straight weeks it's been one fabulous dress after another with Michelle Obama. But last night, the fashionable first lady took a break from the world of dress-up for a noble cause. Michelle, together with Barack, tried to get 150 local middle school students interested in science by hosting an evening of stargazing on the South Lawn of the White House. She stylishly braved the cold in a cinched blue Zero + Maria Cornejo wool jacket with layers of purple and gray underneath, taupe trousers and black ballet flats. Pardon the pun, but the girl's got looking good down to a science!

Click over to mystyle's Michelle Obama: Shop Her Style! gallery to get the smart casual look!

TREND: Leather pencil skirts

WHO'S WEARING IT: Kim Kardashian, Kristin Cavallari and Audrey Tautou

HOW TO WEAR IT: Balance the leather with a sweet tucked-in top, like a lace turtleneck or ruffled blouse, and a nice pair of heels when rocking the trend at night. For a more casual look, pair it with a graphic tee and flats or black tights and booties.

Shop the steal 'n' splurge below!