I work monthly and quarterly but I am very very strict with my money.
I have a spreadsheet and on it I list out everything that I am putting money aside for each month - water, electric, council tax, child care, xmas, tv license, insurance, car repairs/MOT/insurance, holiday pot (ha!), emergency fund, telephone/internet, clothes...
I then transfer the amount I have calculated should be paid monthly for bills when I get paid. It goes to my esavings account. I never ever take money out of there for things other than the bill it should be paying.
When the bill comes in I transfer the money back to my current account and pay the bill from there. Because everything is listed out per bill or item I can see exactly how much I have. So when I need to go get school uniform I can check exactly how much I have in the clothes 'pot'.
I used to pay a bit towards every bill monthly when I was on benefits, but with this new method I end up being about £30-£50 better off because of the interest paid on my esavings account over a year! And that comes in very handy at xmas.
So that's my esavings spreadsheet.
I then have a separate 'cash flow' spreadsheet which shows the state of my current account. Anything else which I buy perhaps weekly or isn't a bill as such goes on here. So I have three months at a time forecast ahead. My WTC, CTC & CB come in every 4 weeks. So when that comes in I then budget around when I can buy food, petrol, 'other' things like school dinners or trips, days out. These things are strictly budgeted too and I have a set amount each month to spend on them. But my cash flow dictates when I can actually buy them.
It works for me but I am never ever tempted to take money put aside for bills and spend it on anything else.
Perhaps you need to have a tighter rein on your money so you can see exactly what is coming up ahead. I always used to forget things like the wheelie bin annual fee and stuff like that. But now I have it listed out so I don't suddenly have to find £30 out of the food budget. Well not so often any more!
It's taken me a very long time to get to a point where I'm not worried about the letters coming through the door because I know I can now pay them. Had two years of dire cost cutting and no spending on anything other than essentials to get here.
And now we have inflation out of control and I'm wondering where I'm going to be able to cut back on some costs... Hmm!