Lay up an Inheritance
God is a God of generations. Over and over in the bible we see God refer to Himself as the God of Abraham, Isaac and Jacob. He promises to keep His covenant to a thousand generations of those that love Him, and so on. Generations are important to God and they also need to be important to us.
One of the most practical ways we can bless the next generation is to set them up financially. Imagine if your parents had set you up finically, how different things would have been for you? You may not be able to change that, but you can do something for the generations after you. Saving changes the foundation of the generations that follow us.