Let’s admit it: We all have those days where lounging around in sweatpants and a baggy T-shirt sounds ideal. In fact, some days it feels like there are a million other things we’d rather do than put an outfit together. But getting dressed doesn’t have to be as challenging as we often make it out to be. Enter some genius outfit ideas. Whether it’s pairing two unlikely pieces together or throwing on an accessory to spice up an outfit, curating a new look has never been easier.To ensure you’re getting the coolest (and easiest) outfit ideas out there, we’ve looked to some of our favorite fashion girls. Want to see how they’ve been styling their pieces lately? Scroll down to discover 18 casual outfit ideas, and then shop each look.A bright outfit can always be toned down with a pair of sneakers. Opt for a look that reads tomboy-chic with a touch of subtle elegance by way of a trendy basket bag. On Courtnee Crews: Zara dress; Vans Old Skool in Black/White ($60).Sometimes, we actually can stay in the comfort of our kimono or robe well into the day by pairing it with a white tee and skinny jeans. The effortless way this piece flows as you walk definitely helps, too. On Alice Barbier: ASOS Kimono in Stripe With Embroidered Back ($95).A pencil skirt usually screams business, but when you pair it with a graphic tee and some fun slides, you’ve suddenly got the most elegantly casual look out there. On Courtney Trop: Copson Bianco on Ice ($52); Staud Domenico Skirt ($124); Mercedes Castillo Delphia Suede Flat Slide Sandal ($495); Jimmy Choo Candy Glitter Acrylic Convertible Clutch ($750).When in doubt, build your look around comfort. Rid the need of form-fitting clothing by letting oversize pieces do the talking. On Sara Escudero: Topshop denim jacket, shirt, trousers, shoes; Balenciaga bag.Jeans are always worth investing in, especially when they complement an elevated blouse like this one. Slip on a pair of sleek pastel heels for the perfect feminine touch. On Reese Blutstein: Rodebjer Blouse Marble Crisp ($224); By Far Romy Pink ($350).We’ve been loving the athleisure trend lately, and so has the rest of the fashion community. Balance out your sporty pieces with a pair of heels and an elegant jacket. On Nadia Aboulhosn: Wild Pearl Faux Fur Shag Jacket ($55); Forever 21 V-Neck Cropped Cami ($4); Marina Rinaldi pants; Steve Madden Stacy Heel ($80).No matter where you are, patterned pants are always a good idea, especially when they are breezy and comfortable. On Lucy Williams: Mango Striped Cotton Trousers ($60); Saint Laurent Tribute Slide Sandal ($595).Warm days call for a refreshing white dress. Adding a scarf and statement flats into the mix makes the simple look that much better. On Mary Seng: Simone Rocha Tiered Tulle Dress ($330); Isabel Marant flats.Inspired yet? Check out five things to avoid wearing on dates!