Food shopping

Having just spent a small fortune in Tesco doing our food shopping, I found myself wondering how much the average family spend on food per week?
I think we eat fairly healthily and I know that a large portion of money gets spent on fresh fruit, veg and meat, but none of this gets wasted and we make meals that last a couple of days – usually freezing portions for another day.
I also take into account the fact that some of the money spent is on household items such as washing powder, cleaning products – and soon nappies and wipes too.
We tend to shop around for the best deals and take advantage of special offers, but I do think we spend quite a lot on food, so would be interested to know what everyone else spends!
Also very interested in any tips on saving money, and cutting down on our shopping bills!