Tesco have loads of biscuits on 3 for 2 at the moment - i usually buy there own range - and they taste fine .......... i have put a few of the prices below - but loads more in store.
Rich Tea Biscuits 3 x 300g 48p
Custard Creams 3 x 400g packs 90p
Ginger Nuts 3 x 400g packs 68p
Snowballs - 6 per pack - 110g x 3 for 82p