Jessica Simpson's Secret Fashion Formula

Her new daughter, Maxwell. Here's how the new mom makes chic, everyday fashion choices.

"I wear the same delicate chain with a sparkly little charm all the time. I've given it as a gift to a few of my friends, because it goes with everything."

Necklace, Stella & Dot, $98; stelladot.com.

"I couldn't wait to get back in heels this summer! I especially like print ones because they're ladylike but make a real statement."

Heels, Payless, $27.99; payless.com.

"You're not limited to maternity clothes. I wore flowy or fitted maxidresses, and practically lived in Roberto Cavalli's comfy-chic caftans."

Blue dress, Sofia by Sofia Vergara, $39.99; kmart.com.

"I have a vintage denim button-down that I absolutely love. It's been patched and sewn so many times, but it is my favorite thing to throw on."

Shirt, Mavi Gold, $98; Mavi, NYC, 212-979-6128.

Mix it up: Gold and silver, diamonds with plastic, or a polished bag with a casual outfit feels eclectic and fun."

Bag, Shop Suey Boutique, $39; shopsueyboutique.com.

"Reflect who you are. I love to be comfortable, but I also love to play up the glamour. My go-to look--denim shorts and a tee with a blazer and heels--is a blend of both. It's classic, but flirty, too."

Blazer, Jessica Simpson Collection, $79; Macy's. T-shirt, Aerie, $15.50; aerie.com. Shorts, Mossimo for Target, $17.99; target.com.

"On my days off I go simple, and I constantly moisturize my skin to keep it healthy. Some BeautyMint face lotion and lip gloss is all I use."

BeautyMint Renewing Moisturizer With Elastin, $39.99 (as part of a set); beautymint.com.