Guests, even beloved, dear, wonderful guests, make messes. Here in Amagansett on a holiday weekend in gorgeous eastern Long Island, guests produce not only crumbs on the countertops and hair in the showers, but also sand on the floors. (And often sand in those showers, too.)

Britta Steilmann, who had visited the East End for almost half a century before settling here 24 years ago, is adept both as a manager who thinks creatively and a designer of living spaces.

Adrian Devenyi and Ramona Albert embarked on a top-down interior renovation of their storied Sag Harbor house in 2018, and in their case, “top-down” included a tower about 40 feet tall, visible above high hedges and between tall, stately oaks on Jermain Avenue.

Brianne Goutal-Marteau, a three-time Grand Prix runner-up at the Hampton Classic Horse Show in Bridgehampton, said, as she was preparing to take her 2-year-old daughter, Clea, into the Grand Prix ring to be judged by Joe Fargis Sunday morning, that the leadline division, in whose sections 2-to-4-year-olds and 5-to-7-year-olds compete, was “the most important class.”