Tesco have increased their 0% purchase card to 19 months, which is the highest in the market.
You also earn Clubcard points on any purchases made on the card:
Tesco stores - 5 Clubcard points for every £4 you spend.
Tesco fuel - 5 Clubcard points for every £4 you spend (excludes Esso Fuel).
Everywhere else - 1 Clubcard point for every £4 you spend.
Handy if you want to make a large purchase and want to pay it back over a period of less than 19 months, and is in effect a 0% loan.