Lesson #2: A single painted wall can speak volumes (Bjorn Wallander)

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In Lisa Teague's living room, a window frame from an old barn hangs above the sofa, handed down from a client. The decorator repurposed a vintage upholstered ottoman—its legs recast in turquoise—as a coffee table.

"This cool green wall causes the others to recede—which makes my narrow living room feel larger," says Teague, who used Sea Glass paint from her own line. "Plus, the sofa and artwork would've disappeared against white."

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