Found this on quidco and thought it was worth a mention - be quick though as its today only!
ScottishPower offers consumers throughout the UK cash saving dual fuel accounts, single fuel accounts and green energy for electricity. They supply over five million energy services to households throughout Britain, and are regularly in the top two or three best-value energy suppliers for many regions in the UK. By switching to ScottishPower's Online Energy Service you can benefit from: * Discounts for managing your account online * No more paper bills and no more estimated bills * Choose to pay by monthly Direct Debit, variable Direct Debit or Debit Card * Pay by Direct Debit and make even more savings
For genuine tracked transactions completed wholly online, you can earn:
£100 for a successful dual fuel sale
£50 for a successful single fuel sale