Olive green and cranberry plaid make the perfect fall pairing. Summer has stripes, spring has florals, and winter lays claim to Fair Isle prints—but plaid is one pattern that is undeniably fall-coded.

Come fall, an innate desire to cozy up with cashmere blankets, oversize plaid shirts, and pumpkin-scented candles tends to take over. And when it comes to painting on a fresh set of tips, nail art ...