Air out your home once a week, including your closets and pantries. Opening these closed-in areas keeps fresh air circulating, even if it's only rarely. This prevents the air from smelling stale.
Mix the distilled water, baking soda, vinegar and lemongrass essential oil in the 20-ounce plastic spray bottle. Add the water first so the baking soda and vinegar don't react. With that much water diluting the ingredients, you won't experience a fizzing action. This concoction is gentle and natural, and you can obtain the materials in grocery and discount stores.
Place a sachet in your linen closet. Sachets are ordinarily put in luggage or drawers to keep the musty smells away, but they serve the same purpose in linen closets. You can also throw a few scented dryer sheets in your closet to keep your towels smelling fresh.