I use zero based budgeting and find meal planning really helps. I've gone off track with my meal planning at the moment and spending far too much on food
I do similar although don't always do zero i leave a small buffer in current accounts.
Things that helped me.
We have 2 bank accounts.
1 salary and bills so anything direct debit/ pay over phone or regular bank transfer like kids activities.
Write list if bills in date order and place somewhere on wall in planner or even notes on phone so for us we get paid 30th every month.
We have couple bills that go out on 30th most on 1st and a few on the 2nd.
We have 3 random odd bills
3rd, 20th and 27th to the value of £43 .
So we totally up all the bills each month.
We then take salary deduct total bills and any debt payments from salary amount.
Whats left we transfer to our variable spending account for food / clothes/ home / miscellaneous.
I have 3rd account child benefit paid into 4weekly only benefit we entitled to.
That pays any kids expenses/ bit of food/ haircuts/ pocket money.
So we budgeting our 3 older kids to manage their money.
We have 2 small credit cards we use petrol/ food and husband fags.
We pay them back off to 0 every pay day we mostly use them so we can free up money to pay more off the larger credit card that we are paying interest on.
I tried to set up emergency fund this year but spent it.
I tried to save for xmas again and failed as so many other bills came up.
Its been an expensive year.
I meal plan. I wrote strict shopping lists.
I buy mostly 2nd hand clothes.
I shop around buying offers and own brand sometimes do 5 or 6 different shops per month.
Non food so cleaning/ pets and toiletries i get from wilkos/ savers / b& m,one below and home bargains
I really like marks and Spencer cleaning sprays £1.
Method only every buy when on offer
Lilds or aldi sometimes do cleanology on special which I bulk buy.
Snacks and random food home bargains and b&m.
Mobile butchers and greengrocers is cheap locally.
Main food shop aldi or lids.
I go to the bigger chains for offers/ reductions and things I can't get on the others.
I batch cook meals and freeze.
I often plan meals around reductions ir lildls weekly meat and veg offers like 2m5k chicken fillets £10.99 padded out with veg i made 7 different meals that are in the freezer for nov.
My new thing since summer trying reduce grocery bill is batch cook month in advance so cook 12 to 20 meals for the following month .
We have 3 freezer I nearly always buy reduced bread.
We try and get reductions but its competitive its luck of draw if you there at the right time.
Had mixed experience on magic bags from the too good to go app.