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The sweltering temps outside are screaming summer, but it’s already time to start thinking about fall!
• Forget black, here’s our fool-proof guide to wearing fall’s brightest colors.
• Get our favorite clothes for fall, all for under $100!
• Try these tips to make your summer pieces work for fall.
• Our top picks for fall-friendly beauty products that won’t break the bank.
• Stars divulge their on-set secrets to looking beautiful.
• Messy ponytails rejoice—here are 8 ways to extend your summer beauty into fall.

It’s Friday, which means that it’s time to cast your vote in the People StyleWatch Who Looked Hot This Week poll. And the nominees are: Leslie Mann in graphic Oscar de la Renta, Sienna Miller in a blue Thakoon minidress, Christina Applegate in a sexy pencil skirt, Rachel McAdams in a plum 3.1 Phillip Lim frock and Renee Zellweger in a grey Carolina Herrera sheath and bright orange bag.

Watch the video and decide for yourself!

She’s a frequent traveler, so it makes sense that Jessica Simpson is adding a luggage line to her eponymous label. What inspires the celebrity designer? “My dream is for my brand to be like Ralph Lauren,” she told us before jetting to Japan to film the VH-1 docu-series The Price of Beauty. “I try to design classic things that aren’t just trends, but you will use again and again.” Simpson will unveil the collection (and a lingerie line) on jessicasimpsoncollection.com and at major retailers in time for holiday travel. We’re on board with the anchor print, which ranges from a $130 tote to a $250 wheeled duffel.

It seems Blake Lively took a cue from the girls at the Chanel Haute Couture summer show by choosing a white nail polish for her manicure. If you’re doubtful about trying this seemingly stark trend, maybe a quote from Coco Chanel herself will persuade you? “With white, one can never put a foot wrong,” said the style icon. Looks like you may need to try it on your toes too! Chanel’s Blanc Petale is a limited edition nail color so hurry and snatch yours up today.

— Samantha Dean

Ohmigod Alert: InStyle.com rounded up pictures of your favorite Twilight stars from a time before they were famous—high school! We got a giggle from Kellan Lutz’s curly ‘do, but think Ashley Greene was just as adorable then as she is now. And don’t miss the author of the cult-series Stephanie Meyer’s yearbook shot (hello bangs!).

The September issue of InStyle features the hot young things of the new Melrose Place dishing on the show’s sure-to-be juicy drama. The photoshoot was inspired by ’90s magazine tears, including the iconic 1994 Rolling Stone cover featuring Laura Leighton, Josie Bissett and Heather Locklear—the original cat-fighting tenants of the now-infamous apartment complex. Check out the behind-the-scenes video to get the new cast’s take on ’90s fashion trends that should never return (hint: crimped hair!) and catch the first episode of the show on September 8th on the CW.

Your coffee table needs a refresh and whose better face to feature than one of Forbes Most Powerful Women (topping Oprah by only a hair)— Michelle Obama. Mrs. O: The Face of Fashion Democracy by Mary Tomer offers an in-depth look into the evolution of the First Lady’s style and is chock full of original photographs, expert interviews and a final chapter featuring quotes from her biggest fans—you. The book hits stores in late October but is available for pre-order on amazon.com now.