Water and vinegar mixed together not only make a great natural cleaner, but also work wonders at getting rid of unpleasant and unwanted household odors. Make up a spray bottle with 1 part white vinegar to 10 parts water. Add a drop of lemon or orange essential oil for a hint of citrus. Spritz around to freshen up your home. It will also eliminate the smell of smoke, fish, pets and even mold.