Not brand loyal at all! We have morrisons and Aldi local to us. It includes packed lunches, doesn't include dinner money (that comes out of the child benefit - but will be zero for a year from September and I've got about £20 to pay for the rest of this term on top of £20 credit from last term and £20 paid today). If we go out for a meal or get a takeaway that comes from our "fun money" budgets as it's a non essential. I need to meal plan more I think. Morrisons do quite a lot of loyalty and money off vouchers, the payday bonus one give us £10 another back and I usually get a £5 of £40 each week.
Should definitely be possible to trim. Another massive expense we have is petrol - around £400 a month, but I always forget to claim my mileage from work which should be about £80 back so I need to get more hot on that. Trouble is I nip here there and everywhere, so often don't bother recording 10 miles here and there - but it adds up at 45p a mile...