Working Your Non-working Fireplace

Lots of people have non-working fireplaces. Lots of people don't use them for much beyond burning candles. But a fireplace can be about six square feet in area, which is a lot if you're living small in, say, a four-or-five-hundred sf apartment...

There have to be some great ideas out there for putting that unused space to work. Just check out the wine storage in Tim Bee's non-working fireplace above. How do you make your antiquated fireplace work for you in your small apartment?