There are bargains to be had everywhere if you look hard enough and don't mind a little traipsing between shops, the forum has got me as keen on saving the pennies as I can.
Some examples, off the top of my head, I have from different outlets in Sale, near where I live.
3 litres 1% milk £1.80 (ish), purple bottle, in Tesco.
2 times 4 pints milk £1.50 in Farmfoods
2 Hovis loaves for £1 again in Farmfoods
3 750g back bacon for £5 in Farmfoods, I was reluctant to buy frozen bacon but the quality is excellent, that amount will last us a month.
Quality brand shampoos and conditioners, £1 each at Quality save, who have quite a few decent deals. 125ml colgate is £1 again, 1 litre Fairy liquid (ad hoc basis sometimes) £1.29. Massive jar Nescafe £2.25 ish (fairy and nescafe have foreign labels on, Germany and Brazil but are the pukka stuff) 2 massive kitchen rolls, quality quilted type, £1. 9 pack quality quilted loo roll (sorry) £2, Box of Tetley tea bags £1. Listerine mouthwash 250ml is £1, though bizarrely the 500 ml is £2.45 you may as well buy 2 small ones. I could go on for ever, there are great deals on stuff like multipack Walkers crisps, fresh orange juice, your bits and bobs for the kids for those with families etc at these types of stores and generally it is all excellent quality.
Safe to say I am now a little obsessive about doing the family shop, but I estimate that we save anywhere between £40 to £70 per week in comparison to my letting Mrs Size do the shop just in the one store, it really is worth the effort, especially if you have the amenities nearby to be able to do it.
Regards.