Topcashback has been brilliant for me over the years! See my dashboard for the cash back I have earned just by clicking the shops links via their website first... it doesn't cost me a bean more!
Here's my sign up link, £5 bonus when you sign up. As most of us will be shopping online this Christmas and could all do with recouping some money..,Happy shopping! 
www.topcashback.co.uk/ref/lisalou1087