Photo: Sang An

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Easy Upgrade: Rugs and Runners
"Rugs are an easy way to add cheer and interest to a kitchen," Miller says—and indoor/outdoor styles can handle heavy traffic and spills. Her go-to retailers: Pottery Barn, West Elm, and Crate & Barrel, as well as ("They make fun and affordable striped cotton runners"). Just remember to use a rug pad to prevent slipping.

Jute rug, Studio Four NYC.