label that envelope, as “food and groceries.” when you receive your second pay cheque, do the same thing again, and put that £250 in the envelope. that makes up for your £500 for the month for food.
no money, under any circumstances, comes out of the envelope except to pay for food at the store. if you go food shopping and leave the envelope at home by mistake, turn around and go grab that envelope. if you take £170 and your total comes to £180, take some things out of the cart. put any change back in the envelope.
when your money is gone, it’s gone! this system keeps you from over-spending 