One Perfect Outfit, 4 Easy Pieces!

As the temperature shifts from balmy to bitchy and back, we need to be prepared to ditch the blazer in a flash. This Big-Apple babe gets it exactly right with a tux-inspired jacket, a strapless winter-to-spring floral dress, and tomato-red shoes that have just enough to color to summon up those May flowers.
Here's what to buy—and where to buy it—to cop her style:
Essential #1: Tux Jacket—This shrunken, button-less blazer will always be the perfect staple to throw over a dress or an over-sized button-down.
Theory Bretta Poet Cropped Jacket, $289, available at Bloomingdale's, 1000 Third Avenue (at 59th Street & Lexington Avenue); 212-729-5900
Essential #2: Strapless Sailor Dress—Choose a frock with gold buttons down the center for a look that's fun without being too freshmen.
Pins and Needles Strapless Ponte Dress, $48, available at Urban Outfitters, 628 Broadway (between Bleecker and Houston streets); 212-475-0009
Essential #3: Simple Necklace—Add an expensive-looking but sweet necklace for an extra flirty dash.
Etten Eller Single Brass Pearl Necklace, $125, available at Bird , 203 Grand Street, Brooklyn (between Bedford and Driggs avenues); 718-388-1655
Essential #4: Red Heels—A pop of color never goes out of style, and these ruby slippers are a great reminder.
Tenoversix Kat Pump in Tomato Red, $230, available at the TenOverSix at the Future Perfect, 55 Great Jones Street (near Bowery); 212-473-2500
R29 GIVEAWAY: We always give you perfect outfits, so why not give us yours! One of you will get your very own street style portrait taken by Refinery29, plus a feature post on our New York site. Just a post a pic of your perfect outfit on our Facebook wall and we'll pick the winner on Thursday!