Used correctly cashback websites can earn you £100s each year when you buy clothes, mobile phones or even concert tickets.
You simply sign up to the cashback site (which should be free and if it's not, avoid it). Then simply log on and browse for the online retailer you want to buy from such as Next, O2, ASOS, Superdry, TicketMaster.
Your visit will be tracked and if you buy something an amount will be put into your cashback account when the transaction is processed. You can then withdraw this as cash.
Daily deal, or group buying sites are another way to bag a bargain. They offer discounts on things like meals out, sporting events, holidays and beauty treatments. The most popular sites are Groupon, Wowcher and Living Social. You are typically given anything from a few hours to a few days to buy a deal. Some have a 'tipping point' where deals are activated when a certain number of people have signed up.