Over the years, I have saved considerable money on finishing products by following a relatively simple procedure. Once I have used half of a gallon of half a quart of product, I empty the remaining amount into a clean spare can half the original size. For example, I usually pour the remaining half-gallon into two quart cans, or the remaining portion of a quart into a pint can. This minimizes the amount of air that can cause rapid deterioration of a finishing product.
You can buy empty metal containers of all sizes from paint stores.These cans are not lined or coated, so you wouldn’t want to store latex or other based materials in them.
– Robert Noelle