Just like a charcoal water filter, charcoal briquettes can be used to absorb moisture and odor from the air in your home. A while back, Gregory tipped us off on using charcoal to remove fridge odors, but they definitely work in other rooms, too. We've found them particularly helpful for "old apartment smell" if you're in an old building or moist smells in basement-level units.
As for how to distribute them, you can simply lay a few out in a metal tray. Other options: sew pouches for them or use an old sock, then hang them in inconspicuous areas. Line a basket with foil or plastic and lay the briquettes inside. Or simply set them out on a tray on a shelf or side table: the black little pillows actually look kind of cool!
Be sure to get natural briquettes without mesquite or easy-light additives.
Have you used charcoal to rid your home of odors? How do you dispense it throughout your home?
Image: Sree Engineering Works