Can you believe that it’s already nearing the end of summer? I feel like “Closing Time” by Semisonic should be playing on repeat for the next few weeks to really help it sink in.

On the positive side of things, fashion is still blooming and the wrapping up of summer means that fashion week is on its way. Like most other Fashionistas and Fashionistos, I am gleefully counting down the days until Mercedes-Benz New York Fashion Week.

A week or two ago, I brought you an article about transitioning your wardrobe from summer to fall, and this week I’m talking about something similar. One of the biggest struggles of summer fashion can be deciding what to wear when a chilly, gloomy or rainy day rolls around.

Since in most places it can still be humid when it’s a bit chillier or gloomier, you have to be wary about piling on too many layers. This Fashionista seems to have used an age-old trick for summer layering: the cardigan. Cardigans are an essential whether you’re a Fashionista or not. Not only can they transform outfits, but they are super functional.

On cooler summer days, use more summery basics to build the foundation of your look like this Fashionista did. She used a pair of cropped, light-wash destroyed skinnies, which are very on-trend, and topped the look off with a gray tank top. A look like this is super easy for summer whether you are running errands or hanging out with your friends.

Since you have an outfit that is geared toward warmer weather, adding a cardigan on top is a casual way to adapt the look for cooler weather. Cardigans are easy to keep with you and can easily be taken on or off as temperatures may fluctuate.

This Fashionista has mastered the cool summer day outfit and topped it all of with simple accessories for casual wear. She opted for a black quilted carryall tote bag and a pair of ever-comfortable Sperry Top-Siders.

I know that cold weather during summer can kind of be a bummer when you just want to wear crop tops and mini skirts, but this Fashionista reminds us that its possible to stay warm while being fashion-forward.

One Simple Change: Need a look for a night out even when the weather is chilly? Simply swap out the cardigan for a structured jacket like a faux leather jacket or even a longline blazer.