Getting stinky hey? i have had great luck "Odor Killer" Odor Counteracting Gel. All Natural, derived from natural plant materials......with refills......they work super great, got one by the cat litter box also, helps there also....
http://www.altgarden.com/store/cart.php?m=product_detail&p=258
http://www.altgarden.com/store/cart.php?m=product_detail&p=258