What is the source of quarrels and conflicts among you? Is not the source of your pleasures that wage war in your members? You lust and do not have; so you commit murder. You are envious and cannot obtain; so you fight and quarrel.
What is the smallest-sized purchase are you ashamed to use a credit card on? In London I used a credit card for a £1 purchase. Here in Worcester I once paid $1.26 at a drug store with a credit card. Have you stooped that low, or lower?