Most anyone who lives in an old New York apartment fights that persistant musty smell — especially in the winter when we keep our windows closed.  While scented candles and air fresheners offer a quick short-term solution, persistant odors are harder to address, espeically if you're not fond of, or are alergic to the artificially fragranced continuous fragrance products like Glade Plug-ins.  Fresh Wave is a different kind of odor control.  The all-natural gel-crystals contain just water and natural extracts of lime, pine needle, aniseed, clove, cedarwood and soya.  They absorb odors as they dry out, and release a natural, clean woodsy odor.  Just open the canister and leave it in an inconspicuous place to address persistant odors in any room.  Buy it online at Amazon.com.