give up money for Lent

What if we gave up money for Lent? Ok. Then how about giving up using the atm and credit card for Lent.

The point is, if we are really serious about "giving up" something that God could use to help us grow spiritually deeper as a disciple of Jesus Christ, it seems to me money would be a good one. It clearly is at the center of most of our lives, and is the greatest competitor with God for our attention, let alone our devotion.