Loads of books that are already cheap are now BOGOF in store and online (use code XCBBOGOFX online).
However, the best deal is how I got 2 copies of new Jacqueline Wilson 'Little Darlings' for FREE!
I bought 2 in store today: £8 each (so £16 for 2) but on BOGOF so £8 for 2. I had £1 World Book Day coupons so expected to get another £1 off each and pay £6 - but the BOGOF multi-buy reduction comes up at till as a £14 reduction not a £8 reduction, so with the £1 coupons I paid NOTHING for the two books!!! Bargain!!!
I'll post receipt later if I get chance, it's great reading!
New Jacqueline Wilson book link: http://www.tesco.com/books/product.aspx?R=9780385614436