The other day I wrote about how PayQwiq can help you in collecting Tesco Clubcard points is an easy way to get Avios which you can use to pay for your flights; topcashback is a way to earn more Clubcard points to make this happen faster.

Like any shopping portal, you log into www.topcashback.com and then click through to your chosen retailer. The transaction is tracked and you get cash back based on the prevailing rate.

When this is deposited into your account you have a number of ways to withdraw it. You can take it as cash but my preferred way is into Clubcard points. Every penny is worth 1 point, and you can take up to £50 a year out like this, equivalent to 12,000 Avios. After that, you can withdraw direct to the BAEC at 1 Avios / p or keep it until the following year.

Most of my usual online retailers are there, but my favourite for multiple kick back is, unsurprisingly, British Airways! These are the offers you can take advantage of:

Back in June, I booked our trip to Nice with a car hire, clicking through topcashback to pick up the £21 cashback.

This will get converted to 2100 Clubcard points and then 5,040 Avios. As I paid the £778 on my BAPP AmEx, I earned 2,334 Avios for the payment. This is in addition to the 1,536 Avios for booking it as a BA Holiday, 961 Avios from Avis for the car hire and 1,292 Avios from flying as a Silver card holder – totalling a massive 11,163 Avios, which is more than enough for another return flight to Nice that could easily cost over £200.

There are, as always, a couple of things to note when using any cashback site.

• Cashback is not guaranteed, so don’t count it until it is in your account
• It can take a long time to track, so be patient. I probably wont get the £21 above until more than a year after booking
• You may need to clear your browser history and cookies to allow it track properly. I often use another browser to do the booking which is separate from my research one to reduce the risk of complications.
• The service costs £5 a year, but this is only taken if you earn anything, so there is nothing upfront to pay.

If you are not already a member, I strongly urge you to sign up using this link, from which I will earn a small commission in their ‘refer-a-friend’ scheme. I have probably earned about £120 a year in cash back since I started using them in 2008. About £250 of that has been through TCB which is my preferred choice thanks to the Avios conversions.

Do you use cashback sites? What has been your most lucrative cash back transaction?