Metaphors We Must Live By

We all know the phrase, "Time is Money". But have you ever really stopped and thought about what that means? We talk about "spending time" and "investing time" and even "saving time," but do we follow that to its logical conclusion? If I save time now, will I have more time later? If I invest my time in the right way, will I get a return on that investment? For the Christian, we are called to be stewards of our resources- does that mean that God will call me to account for how I spend every day?