Tesco has a £5 off £30 Lego spend voucher
in store in the magazine with the Christmas wreath on the front. Hint, if you can't find one and your store has an optician or extra services, there will be a few lying round there.
Feel out the bags (there are loads of guides out there). Should take ten minutes with the guide from the brothers brick. Get all 16, till charges you £40...apply discount voucher....£35. Take off 1/3rd.... then you get your £1.46 each