I'm a cash payer for daily things.
That debit card makes it sssoooo easy to overspend.
Way to easy.
So each week a specific amount of cash goes into my wallet and untill the next week that cash is the spending limit.
Basically, I guess you could say, I give myself an allowance and when its gone for that week, it's gone.
Yes, the debit card is there in case of emergency, but I make myself think twice before getting it out.

Household set in cement monthly bills, like rent or phone bill etc, do NOT come out of my "weekly cash allowance".
But my gas and anything spent at stores does come out of it.
This helps me stay on a budget.