The best use of money is definitely to spend it purposely. What is the point of amassing all the wealth in the world when all I am interested in doing is owning several houses, eating, drinking and throwing parties everyday?
A trend I noticed is that the wealthiest people on the planet are also the most generous, (Click and read: How 8 Billionaires are giving money away to charitable courses). It seems like you work hard to make a lot of money and then you work hard to give it all away.
Money must be used to advance God’s mission in the world.
Money must be used to make a real difference in the lives of people (beyond eating, drinking and partying).
Money must be spent purposely.