Step 2: Around the House
To shine up cast iron, a small dab of butter on a cotton rag will make your metal look like new. This works well with other metals, as well.
Butter can also be used to add shine to your leather baseball gloves, jackets, belts, wallets, purses, etc. Because butter contains proteins, it has plenty of amino acids and won't hurt the leather. Simply rub a small amount of butter on your leather goods for a nice shine.