Why do we give?

We give because we love others, we want to obey God, and because giving is a result of the Gospel.  2 Corinthians 9:7 says, "Each one must give as he has decided in his heart, not reluctantly or under compulsion, for God loves a cheerful giver."

Where does the money go?
Who keeps track of the money and how is it spent?
How can we give?