Photo: Courtesy of Fawn Galli

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3. Warm up a cold, dark spot like a hallway by using a decorative Chinese paper lantern as a hanging light fixture. The glow of the bulb through the red or pink paper makes the area feel welcoming???instead of simply like a place to trudge through to get to the bathroom or stairs. Buy a socket kit at your local hardware store and install it yourself.

Estimated cost: $70