The chemistry between baking soda and vinegar is so powerful that this combo can flush grease out of kitchen drains. Just pour ½ cup baking soda into a clogged drain and follow it with ½ cup white vinegar. Cover the drain for a few minutes as the chemical reaction dissolves the grease — then flush the drain with warm water. A caveat: Never use this method after trying a commercial drain cleaner; the cleaner could react with vinegar to create dangerous fumes.
