Make your own vegetable stock. It's one of the easiest things to prepare, and you'll be glad you did! Vegetable stock is not only good for soup, it is great when used in boiling rice or other grains. It's can also be added to a stir fry, if you need some extra liquid. This adds flavor rather than watering down your recipe. You can also use broth to moisten left-overs when reheating them.