If you haven't joined TopCashback then here is a good excuse! It is a great way to earn cashback for everyday and special purchases. All you have to do is click from TopCashback to the retailer and complete your purchase and you will then accrue cashback based on the amount of your spend with that retailer. There are offers and exclusive deals every so often so in my experience always worth checking with TopCashback before you checkout online. I find that generally the reward levels are higher than Quidco (for retailers I frequent)
It can take some time (months) to get the actual cashback so patience is required but it does build up over time if you consistently use it for all of your online purchases. Once the cashback is payable there are lots of ways to get the money out including BACS direct to your bank with additional up lifts if you take the money as giftcards etc.
They run this scheme all of the time but at the moment and until Tues 4 Jan 22 if you signup using my link you will get a £10 signup bonus once you have earned £10 cashback and I will also get a referral incentive of £25. So use it a few times and double your money! Will need some patience though but this is very much a long term habit to be developed in the coming year.