I use sites like this to earn extra money throughout the year. It may not feel like much but I can assure you it all adds up and is definitely worth doing.
Just register with InboxPounds and they'll send you "paid e-mails" which you get paid for reading. You'll get a £1 bonus just for signing up and then get paid every time you take surveys, read e-mails, search the web and play online games.
They've got millions of members who combined have earned over £2,105,719 in rewards to date.