When I think of summer I start dreaming about cottages and cabins and beach houses, and this summer retreat in Sag Harbour, New York is a little gem and a great place to spend warm summer weekends. Designed by Elizabeth Cooper, its nautical vibe with blues, stripes, pops of red and shiplap works so well in this environment. And those bleached wood floors have me swooning. (Photos: Virginia Mae Rollison for Lonny)