UK consumers are now more likely to turn to debit than credit for day-to-day transactions. Over the period 2002-2006, the share of the total value of personal spontaneous transactions accounted for by credit and debit cards grew from 80.6% to 88.1%. However, the share of credit cards within the total has declined from 27.2% to 24.3% This substitution has seen consumers making greater use of overdrafts to finance some short-term borrowing, depriving credit card issuers of interest revenue. The slowdown in credit card transaction values from 2004 onwards has been accompanied by strong growth in overdraft borrowing. There are three areas of strategic response for issuers: attacking debit directly, re-positioning the card for lending, and targeting new areas of payments. Each offers significant opportunities and a clear path for exploitation. There are, for example up to £92 billion of untapped gross advances in the consumer credit market.