I shop at Aldi(veg/meat/cheese/bacon etc) and Sainsburys/Iceland(frozen) and notice the price increases every couple of weeks, i am a bit of a brand snob, but recently have tried 1 or 2 own brand items such as salad cream £1 v Heinz £3 and its ok, we spend around £200 a week for the 3 of us.
I know i can reduce this amount easily, we do waste a lot of food and spend silly money on treats etc, though rarely buy alcohol, for example i have 2lt milk cartons delivered 3 times a week and i pour half down the sink every week, been saying for years it's time to cancel, more fool me.