Just passing this tip on,as only came across this by chance :)
Found on the Tesco clubcard deals page(52 Brilliant Ideas)
,basically you buy £3.25 book voucher to buy book with free experience and other discounts included in book.
I can't find which locations they are available,but it does state on their website it's nation wide.
Every reader gets a FREE high-speed passenger ride in a high performance car, worth £30, plus exclusive discounts for many of the activities featured inside.
How to order
1. Firstly you need to exchange your Tesco Clubcard Vouchers for a 52 Brilliant Ideas book token. For full details on how to do this click here.
2. Choose your preferred book/s from this website, making a note of the full title (which is indicated next to each image).
3. Every £3.25 Brilliant Ideas token gets you one book which is normally retailed at £12.99.
4. Complete the booking form. Click here for the order form.
5. Send the completed form along with your 52 Brilliant Ideas Token/s to:
Tesco Clubcard Offer
36 St Giles