This has been submitted before but Quidco have increased cash back for first timers who register for free credit report.
Free Experian Credit Report
CreditExpert offers you a FREE Experian credit report. See what lenders see when you apply for a credit card, mortgage or loan. Improve your credit score and check that all the information contained on your credit report is accurate and up to date.
For genuine tracked transactions completed wholly online, you can earn:
£7 for signing up to the one month free trial